American Dyestuff Reporter

INDEXTO VOLUME X V J

January 1/ 1927, to December 31, 1927,Inclusive

Indexed by Subject and Author

«()8 AMERICAN DYESTUFF REPORTER Vol. XVI, No. 2?pel

In d ex By S u b jectSubject Page

Accurate Determination of Costs: The (B ro h el)............................................. 171Acetate Silk: The Soluble Vat Dyestuffs on (M u llin ) ............................... 575Action of Perspiration on Textiles (D am on ).................................................... 508Alkalies in the Textile Industry: The U se of (P h illip s ) ............................. 155Alkalies on W ool: Effect of: I'l— Experiments C'omparing Effects of So­

dium Compounds, Potassium Compounds and Temperature (Chapin) 90 American Association of Textile ChemistS and ColorisiS

[See under "Proceedings” ]American Chemical Society:

Papers of the Dye D ivision............................................................................ 212, 556Institute of Chemistry Planned b y ................................................................... 239

American Dye Production Further Increased.................................................... 260Aminated Dyes, with Variation in Concentration: Tautomerism of

(H olm es) .................................................................................................................... 429Ammonium Persulphate for Oxidation (H ark in s).............. 736Amzo— A W ashing and Bleaching Agent (H ark in s)...................................... 736Antichlor and Final Sour: SOo as (E ld rid ge)................................................... 652Application of Sulphur Colors lo Raw Cotton: The (C hase).................... 303Artificial Silk: The Aftertrea ment o f .................................................................... 104Artificial Silk to W'ater: Work Done to Increase the Resistance of

(Jackson) .............. .................. ................................................................................ 806Automatic Control of Concentration in the Mercerizing Process (Parker,

Greer and B arba)................................................................................................... 49Azo Dyes: Recent Advances in the Identification of (H olm es).............. 407

Bleaching Colored Stripe C’otton Materials: Kieropon— New Processfor (Thompson) ..................................................................................................... 820

Bleaching and Dyeing of Knit Goods: The (R ic e ) ...................................... 578Bleaching: Electro-Chloi inalion in Textile (M arsh)...................................... 650Bleaching: Liquid Chlorine in Tex i e (P h illip s)........................................... 6 8Bleaching of Cotton Piece (ioods: The (O rm a-id)........................................ 312Bleaching. Singeing and Finishing of Cotton C'loth (A lex a n d e r).......... 701Bleaching with Hydrogen Peroxide (Sm o len s).................................................... 545Books: Among the New Technical........................................................................ 753

[See also under "Reviews” ]Bri'ish Move borward in Textile Research........................................................ 572Buffer Substances in the Textile Industry (Jaeger and Coffrnann)........... 177

Celanese: Sulphur Dyeing in the P ’esence of (P r ic e ) ............................... 275Chasing Troubles in the Dyehouse (W’h ite ) ...................................................... 742Chemical Constitution and Fastness Properties of Colors: The (W uth) 22Chemical Exposition ..................................................................................................... 629

Educa ional Courses in, Connection w ith ...................................................... 475Chemical Industries Dinner: T h e ............................................................................ 630Chemical Laboratories: Prevention of Accidents in (S tillm an ).............. 619Chemical Treatment of Trade Waste (Sn ell):

Part I— Dyes in G eneral......................................................................................... 51Part II— W^astes from Silk D yeing ..................................................................... 86

Chemistry to the Textile Industry: The Relation of (C ook).................... 222Chlorination of Unshrinkable W’o o l........................................................................ 361Coated Textiles (B radshaw )....................................................................... ............., 617"Colloid Dynamics” in the Textile Industry (M u llin ).................................. 239Color Names, On: The Art of W’ord Making (I lo o le y ) ............................. 525Color Swatches— How to Make Them Quickly in Your Own P la n t . . . . 683Colorimetry, Bibliography of (Letter from J. G. P r ie s .) ............................. 832Colorimetry of the Bureau of Standards: Investigations in ...................... 278Control of Acidity and Alkalinity by Hydrogen Ion Measurements

(Taylor) .................................................................................................................. 351Colors, Measuring ........................................................................... 610CO RRESPO NDEN CE:

Textile W'ork at Bureau of Standards............................................................ 168What Shall W e Say and W'rite?.................................................................506, 563The Annual Meeting Program............................................................................ 629On "Ever Dye a H orse” ............................................................................• .......... 659

Cotton and Rayon Piece Goods: Some Methods of Handling (W'arner) 824Cotton Cloth: Bleaching, Singeing and Finishing of (A lexan der)........... 701Cotton Dyeing Department: The Loose (T extr ion ).......................................... 557Cotton: Process of Producing Ice C'olors on (Jellinek and C h r is t ) . . . . 706Cotton Textile Institute Appoints Research Associate................................... 689(Critical Study of the Accuracy of Dye Testing Vat Dyestuffs for

Strength: A (D ra v es)....................................................................................... 337

Dangers from Static Electricity in the Handling of Solvents (Backhaus) 645Deterioration of Linen: Tests fo r .......................................................................... 323Determining the Liqtiefying Capacity of Diastatic Products (Liepatoff) 584Development of Vat Colors in America: The (S to t t) .................................. 18Differentiation of Viscose and Cuprammonium Silks Through Color

Reaction: The (K ra is)....................................................................................... 444Dip Dyeing Ilo.siery (Z ism an)................................................................................... 817Dressing and Dyeing of Furs: The (R o g ers)................................................... 248Drippage or Steam Vapor in Dyehouses: The Elimination or Control of

(W’allace) .................................................................................................................. 346Dry ('leaning Aids: Soaps as (H ubbard).................... • ................................... 113I)ry ("'leaning Studied at Bureau of Standards: Stain Removal in ......... 165l)u Pont Company Looks Back ()ver a Quarter-Century: T h e .................. 631Dye Production Further Increased.......................................................................... 260Dyehouses: The Elimination or Control of Drippage or Steam Vapor

in (W'allace) ........................................................................................................... 346Dye Industry: Twenty-live Years of the American (D er ick )...................... 467Dye Kettles: Piece (S te v e n s ) ................................................................................. 461Dye Solution Phenomena with Variations in Hydrogen Ion Concentra­

tion (Holm es and B erliner)............................................................................... 81Dyeing and ('leaning Industry: Sidelights on (F itzgerald )......................... 271l)yeing and Finishing of C'elanese: The (K in g )............................................. 494I)yeing: Ilosiery (Ila th orn e).................................................................................... 399llycing Machine: The Multiple Porcelain Reel Skein (B uhlm ann)........... 738I)veing: M odem Theories of (R o se ) .................................................................. 14Dyeing of Celanese Brand Yarns and Fabrics (P r ic e ) ............................... 214

Subject PageDyeing of Felt: The (P u tn a m )................................................................................ 9519yeing of Hosiery Containing Mixed Fibers (Edwards and H ardcastic) 581Dyeing of Silk Yarns and Cloth: Preparing and (W 'ingate)...................... 66 /Dyeing Silk with Suliihur Colors (G rove-Palm er).......................................... 6 5Dyeing with Vat Colors (C a d y )................................................................................ LS6-Dyers Advise Lower Silk W eighting...................................................................... 727D Y E R ’S SCHOOL OF E X PE R IE N C E : TH E :

Problems Strange and V arious............................................................................. ^97Adventures in Bleaching........................................................... ............................... 227An Experience in Hosiery D yeing....................................................................... 290In a Silk Thread M ill.................................................................................................. 38(>Civil War in a Silk M ill......................................................................................... 451

Dyes and Their Application: Recent Technical Progress (H oo ley ) . . . . 434Dyes Imported Through New York and Other Ports:

November ........................................................................................................................ 4Summary for 1926..................................................• ............................. ...................... 96January ............................................................................................................................ 1 5February ......................................................................................• .................................. 199*March ............................................................................................................................... 285April .......................................................... • .................................................................... 329May ................................................................................................................................... 415Tune ................................................................................................................................... '^70July ................................................................................................................................... 52SAugust .......................................................... • ................................................................. 591September ........................................................................................................................ 677October ............................................................................................................................ 73j

Dyes in Physiological Research (C lark)........................................... • .................. i69Dyestuff Interests to Benefit by Protection of Industrial Property (Faw ­

cett) .............................................................................................................................. 589*Dyestuffs: A .S h o rt Discussion of the M anufacture of Some of the

be er Known (S ‘o t t ) ............................................................................................. 57Dyestuffs Problem: T h e ............................................................................................... 29-Dyes'nffs: The Manufacture of Sulphur (C r ist) .............................................. SCODye-Testing Vat Dyestuffs for Strength: A Critical Study of the A c­

curacy of (D ra v es)............................................................................................... 337

ED ITO R IA LS:Outgrowing Routine in the Mill Laboratory................................................ 39Dye Research in W ashington................................................................................. 39A Thought to R elations.......................................................................... • ................ 39-Stalking Waste in the M ill...................................................................................... 69-Metric Measures in M erchandising...................................................................... 106Textile Study at the Bureau of Standards.................................................. 106Fast Color Education Continues........................................................................... 135The Strength of Sentim ent........................................................................ • ........... 135Dyes in Medical Research........................................................................................ 167Watch the Dyers and Cleaners............................................................................. 195Unprogressive Moderns ............................................................... - ........................ 21?Reversing an Old T ale............................................................................................... 23 2Expanding Our Foreign Chemical Trade........................................................... 23 2Time to Provide for Research.................................................... • ........................ 255The Growing Consumption of Vat Colors......................................................... 255The Tin-W eighting Q uestion................................................................................. 2 9 ’•Chemists Can H elp..................................................................................................... 29 tAt the Economic Conference.................................................................... 29.'■Our Move N e x t............................................................................................................ 325A Business Man Talks About Research........................................................ ■ 326Foreign Sentiment Against Our Dye Tariff.................................................... 3^9-What Makes the Master D yer?............................................................................. 381The Future of Fur D yeing...................................................................................... 383The A. A. T. C. C. Appoints a Research A ssociate.................................... * 21Annual Caution ............................................................................................................ ^2?Said the Laundry Man— ....................................................................................... 3The Cost of Cheapness....................................................................................... A77Competing with the Law Courts........................... ‘.............................................. ^ 7 'The (9ther Fellow’s Problem s................................................................................. 5^5The Reader Be— Served .......................................................................................... 50 5For Safety’s S a k e . . . . - ............................................................................................ 5 .,Assailing the Anti-Trust Law ............................................................................... Slo.Stolen Formulas .......................................................................................................... 537Why Not Show the Public?.................................................................................. 561The Test of Capability............................................................................................ 50

Answering a C o r r e sp o n d e n t...,........................................................................... 55?Reinforcements Needed .......................................................................................... 597’L^nethical ....................................................................................................................... 597Squeezing the British Dye M anufacturer......................................................... 598Ever Dye a H orse?................................................................................................... 599'Indifference in the Inner (Lircle.......................................................................... (> /The Safe Laboratory................................................................................................. 28-Making Industry Safer............................................................................................ 038Those Eventful Years: 1917-1927.................................................................... 65 iEurope Masses Its Chemical T rusts.................................................................... 687Burning Up (Our Coal T ar.......................................................................................688A Problem of D efense............................................................................................... 735The Toboggan of Dye P rices.............................................................................' 7 /1The Textile Alliance F unds................................................................. ! ! ! ! ! ! ! ! 7? 1The Annual M eeting of the A. A. T. C. ( j .................................................... 7 'An L'npopular Idea............................................................................ ! ! ! ! * . ! . ! * . 7"?Whom to "Sell” on R ayon...................................................................................... y •>One Brass Tack.................................................................................! ! . ! 1 . 78’New Dyestuff Consolidation....................................................................................... 72,7Craftsmanship .............................................................................................................. 7^7Dropping the Dignity from Research.........................................8 ’ 1The Closing Y ear.............................................................................................. ’

Education for a Textile Chemist and Colorist?: What (Constitutes ariAdequate (Olney) ..........................................................................................

Effect of Alkalies on W ool: II— Experiments Comparing Effects o f S o ­dium Compounds. Potassium Compounds and Temperature (Chapin) 90

Electro-Chlorination in Textile Bleaching (M arsh )....................................... 65)'

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December 2G, 1927 AMERICAN DYESTUFF REPORTER 809Subject Page

Electrolytic Process for the Regeneration of W aste W aters of VariousChemical Treatments (B a n h o lo w )................................................................ 343

Enzymes of Diastase in the Textile Industry: The (F isk e ) ............ 125Enzymes: The (L e e ) .................................................................................................... 126Enzym es in Bleaching and Dyeing: The Function of (R ic e ) .................. 555Enochrom e Colors: The (K now lan d )................................................................. 191Essentials in Dyeing Cotton Warp W oolen Fabrics (R ic e ) ....................... 608Experience with Manganese in T extile W ater: An (G oldthw ait)........... 605Eye: Initial Treatm ent of Chemical Burns of the (H ubbard)................ 596

Faster Colors: The Tendency to (C onstab le).................................................... 746Fastness Properties of Colors: The Chemical Constitution and (W uth) 22rastness Standardization: Dr. Krais o n ............................................................. 292Fastness: Standardization of Color (K r a is ) ........................................................ 405Fastness Standards, German

[See under “Testing M ethods” ]Fastness to Light of Dyed Materials: Report on Experiments with the

Photoelectric Cell in Relation to Testing (A p p e l) .................................. 715Fastusol Dyestuffs on Viscose and Cuprammonium S ilk ................................ 521Fiber the True Textile U nit: The (G oodm an).................................................. 436Filter Plant Operator: The Value of pH to the (A ilin g ) .........................! . 761Finishing of Hosiery: The (G add y)...................................................................... I53Food Dye: A Proposed New (Johnson and S tau b )......................................... 373Franklin Machine for Raw Stock Dyeing: Performance o f ....................... 137Function of the Enzymes in Bleaching and Dyeing: The 0 < ic e ) ........... 555Fur Industry: The Role of Chemistry in the (A u st in ) .............................. 367Furs: The Dressing and Dyeing of (R o g ers).................................................... 248

German Dye Industry:In W orld’s Nitrogen T rade.................................................................................... 136Reports Large Profits............................................................................................... 384Exports Lead the W orld .......................................................................................... 573

■ Glue as Beater S iz in g .................................................................................................... 476

H osiery Containing Mixed Fibers: The Dyeing of (Edwards and Hard-castle) ............................. 581

Hosiery: Dip Dyeing (Z ism an)............................................................................... 817H osiery Dyeing (H ath orn e)........................................................................................ 399Hosiery: Multi-Color Effects on Multi-Fibered (G rady-M iller)................... 314Hosit-'y; Removal of Nigrosine Stains from .................................................... 21 iH unters in the Dark (Schaeffer)............................................................................. 754Hydrogen Ion Concentration: Dye Solution Phenomena with Varia ijns

in (Holm es and B er lin er )................................................................................... 81Hydrogen Ion M easurements: Control of Aciditv and Alkalinity by

(Taylor) ..................................................................................................................... 351Hydrogen Peroxide: Bleaching with (S m o len s) ................................................ 545Hydrosulphite in the T extile Industry: U ses of (T hom pson).................. 496

Ice Colors on Cotton: Process of Producing (Jellinek and C h r is t ) . . . . 706Identification of the Rayons: The (M u llin ) ...................................................... 145Imported Dyes

[See “D yes” ]Improved M ercerizing Process: A n ...................................................................... 560Indigo Dye (J a eck )......... .............................................................................................. 158Indigosol Colors: The (G insberg)........................................................................... 437Indigosols: The Practical Application of the (K u h l).................................... 64Industrial Activity in U nited States Breaks R ecord...................................... 168Industrial Health and the Local Health A gen cy ................................................ 832Industrial Poisons Affecting Eyesight Stud ied .................................................... 478Initial Treatment in Chemical Burns of the Eye (H ubbard).................... 596Interesting Experiences and Observations at the Southern M eeting

(Christison) ............................................................................................................. 89International Dye T rade................................................................................................ 396

[See also under “Germany,” “Japan” and “British” ]Introduction to a D iscussion on the T esting of Sulphur Colors (Bam ­

berger) ........................................................................................................................ 740

Japan’s Dye Industry:Acting Against False Labels.................................................................................... 70Present Extent o f ........................................................................................................ 166Subsidizes Indigo M anufacture............................................................................. 727

Kierpon— New Process for Bleaching Colored Stripe Cotton Materials(Thompson) . . 820

Knit Goods: The Bleaching and Dyeing of (R ic e ) ...................................... 578K nitting Arts Show: T h e .................................................................................... 114, 257

Laboratory M ethods: Practical (S ou th ern )......................................................... 747Light Fastness: . Report of Sub-Committee on: I— Light Exposures,

Series 3 (A. A. T. C. C .) .................................................................................... 707Linen: Tests for Deterioration o f ........................................................................... 323Liquid Chlorine in Textile Bleaching (P h illip s ) .................................................. 648Logwood Dyeing on S ilk ............................................................................................... 802Loose Cotton D yeing Department: The (T ex tr io n )....................................... 557Lowell Textile H olds Twenty-ninth Commencement......................................... 385

McKerrow, H. Gardner.................................................................................................. 507Manganese in T extile W ater: An Experience with (G oldthw ait)........... 605M anufacture of Sulphur Dyestuffs: The (C r ist) ........................................... 500M ercerizing Process: An Im proved....................................................................... 560M ercerizing Process: Automatic Control of Concentration in the

(Parker, Greer and B arba).................................................................................. 49M arketing Chemical Specialties Abroad.................................................................. 196M easuring Colors .......................................................................................................... 610Modern Theories of D yeing (R o se ) ...................................................................... 14Multi-Color Effects on M ulti-Fibered Hosiery (G rady-M iller).................. 314M ultiple Porcelain Reel Skein Dyeing Machine: T he (B uhlm ann). . . . 738

Naphthol A S on Silk (L in t) ...................................................................................... 432Naphthol Colors: Some Experiences with (H a sk ell) ....................................... 245Naphthol Dyehouse and the Problems of the Naphthol Dyer: A Short

Visit to the (M arsson )............................................. 119N ew Education and an Old Industry: The (C laflin ).................................... 318Nigrosine Stains from H osiery: Removal o f ............................................... .. 211Nineteenth (Century Chemistry and Twentieth Century N eeds (Claflin) 1 N otes on the Bleaching of Rayon and Cotton Flosiery (G rove-Palm er). . 729

On Color Names: The Art of Word M aking (H o o le y ) ................................ 525Ortho-Cresotinic Anilide: A Study of Some Derivatives of (Beattie

and Toepler) ............................................................................................................. 402

Package D yeing in Closed M achines (P u ck ett) ................................................ .U6Paper Industry: T esting Dyes for the (N o ll ) .................................................... 84

Subject PagePaper Sizing Studied by Bureau of Standards................................................ 56Patent and How Can Infringem ent Litigation Be Avoided: Who In ­

fringes on a (P a rk er) 6/

P A T E N T S:Device for Dyeing Suspended Hank Y arn......................................................Fabric-Dyeing Machine ..........................................................................................Photomicrographic Camera ...................................................................................Manufacture of Vat Dyestuffs...............................................................................Manufacture of Viscose R ayon.............................................................................Treating Textiles .......................................................................................................Drying Machine ..........................................................................................................Dyestuffs ('ontaining Chromium............................................................................Coloring Leather .......................................................................................................Filam ent-Dyeing Apparatus ...................................................................................Treating Liquids ........................................................................ ...............................Composition for W ashing........................................................................................Liquo-Tanning Materials .......................................................................................Acid Wool 19yestuff...................................................................................................Cleaning Cloth ...........................................................................................................W ater Softener .........................................................................................................Coloring Materials .....................................................................................................Vat Dyestuffs ..............................................................................................................Drying Textiles ......................................................................................................... -Finishing Machine .....................................................................................................Treating Fibers with D yes.....................................................................................Dyeing Machine .........................................................................................................W eighting Rayon .......................................................................................................Preparation and Dyeing of Leather...................................................................Finishing Viscose Fabrics.......................................................................................Retted Bagasse F iber................................................................................................Vat Dyestuffs ..............................................................................................................Water *Sof ening Control............................................................................................Impregnating Fibrous M aterials............................................................................Chromable Azo Dyestuffs .....................................................................................Coaling and Drying Fabric.....................................................................................Apparatus for Treating F iber.................................................................................H osiety Drying M achine.........................................................................................V iolet Vat D yestuff...................................................................................................Anthraquinone Paste ................................................................................................Thioind'go Vat D y e .....................................................................................................Finished Fabric .........................................................................................................Anthraquinone Derivatives ...................................................................................Extracting Fats from T extiles..............................................................................Manufacture of Nitrated Cellulose.....................................................................Fluid-Pressure Regulator .....................................................................................Black Naphthol D yes................................................................................................Treating Paper ...........................................................................................................M anufacturing Artificial S ilk .................................................................................Anhydrous Sodium Bisulphite...............................................................................T rea'irg Yarns in H anks.......................................................................................Printing Textile Fabrics..........................................................................................Power W ashing M achine..........................................................................................Laundry Machine-Extractor ...................................................................................Stable Derivatives of Vat D yes............................................................................W ater Treatment .......................................................................................................Fast Color Discharges on Fast D yeings.............................................................Treating Residual L iquors.....................................................................................Piping for Textile M achinery...............................................................................Paper-Coloring Device ..............................................................................................

Perspira'ion on Textiles: Action of (D am on )..................................................Philadelphia Textile Alumni Plan Big M eeting..................................................Physical Tests to Determine the Effects of Chemical or Other Treat­

ments on Yarns (G oldthw ait)............................................................................Physicist and the Wool Fiber: The (tlood m rn )...............................................Piece Dye Kettles (S te v e n s ) .....................................................................................Practical Application of the Indigosols: The (K u h l) ....................................Practical H ints on the Production of Bright (Colors on T extile Fabrics

(Sansone) :Part X X V II ........................................................................Part X X V III ...................................................................Part X X IX ...................................................................................Part X X X ..............................................................................................Part X X X I ......................................................................................Part X X X II ..........................................................................Part X X X III ..................................................................................... ..................Part X X X IV ...................................................................................................!

Practical Laltoratory Methods (S ou th ern )...........................................................Preparing and Dyeing of Silk Yarns and Cloth (W ingate):

Part I ..........................................................................................................Part II ..................................................................................................................... ; ;;

Prevention of Accidents in Chemical Laboratories (S tillm a n )..................Printing of Textiles: V igoureux (R ic e ) ...............................................................Proceedings of the American Association of Textile Chemists and Clol-

orists— 7, 57. 89. 119, 153, 185, 213, 245, 283, 309, 345, 379, 411 489, 647, 679, 735, 763, 791.

Process of Producing Ice Clolors on Cotton (Jellinek and C h rist)...........Proposed Method of Testing the New W etting-Out Materials: A

(D avies) .....................................................................................................................Purpose and Practice of Souring: The (G uernsey):

Part I ..........................................................................................................Part II ...................................................................................................................; ; ; ;

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R ayon:[See under “Viscose," “Acetate," etc.]

Rayon and Cotton H osiery: Notes on the Bleaching of (Grove-Palmer) 729Rayon Processing (M orningstar)............................................................................. 795Rayon Piece Goods: .Some Methods of Handling Cotton and (W arner) 824 Rayons: Removing Stains from Cellulose Acetate (Cloldman and Hub-

hard) ............................................................................................................................ 237Rayons: The Identification of the (M u llin ) ......................................................... 145Recent Advances in the Identification of Azo Dyes (H o lm es).................... 407Relation of Chemistry to the Textile Industry: The (C ook ).................... 22?Remsen. Ira— H is Life and W orks (D o g g ett) .................................................... 309Report on Experiments with the Photoelectric Cell in Relation to Testing

Fastness to Light of Dyed Materials (A p p e l) ........................................... 715Research as a Business (R o se ).................................................................................. 489Research Association: Story of the British W oolen .................................... 696Research: British Move Forward in Tc.xtile......................................................... 572Researches on Proteins. IX — The Action of Pepsin on the Protein

“Sericir" on Silk (Shelton and Joh n son ).................................................... 481Responsihiti'y for U nevenness: T h e ...................................................................... 46^

810 AMERICAN DYESTUFF REPORTER Vol. XVI, No. 22

Subject PaireR E V IE W S: ^

Effect of Dry Cleaning on S ilk s.......................................................................... 45Fabrics and How to Know T hem .......................................................................... 79Van Nostrand’s Chemical A nnual........................................................................ 79Annual Report of Bureau of Standards........................................................... 107Dyestuffs and Coal-Tar Products........................................................................... 108A B C of H ydrogen Ion Control........................................................................ 108Radiometric M easurements on the Carbon Arc and Other Light

Sources Used in Phototherapy........................................................................... 139Chemical Engineering Econom ics....................................................................... K 9Raw Silk Classification Report.............................................................................. 139Stain Removal ............................................................................................................ 139U. S. Specifications for Soap, Soda Ash, Etc............................................... 140Annual Report, Tariff Commission.............................................................................Chemistry of the R esins.......................................................................................... 140Standard Cleaning Practice.................................................................................... 327Lovibond Color System ........................................................................................... 327Trichromatic Colorimeter ...................................................................................... 327Textile Bleaching, Dyeing, Printing and Finishing M achinery................ 365How to Do Research W ork.................................................................................... 365Starch Making ............................................................................................................ 365Progress of Applied Chem istry............................................................................. 388Colloid Symposium .......................................................................................... 388Modern Soap and Detergent Industry ............................................................ 388Standards \ earhook ................................................................................................... 388Survey of American Chem istry............................................................................ 388Directory of Laboratories........................................................................................ 423D yeing of Cotton Fabrics........................................................................................ 450Sulphite Cellulose Extract as Tanning M aterial........................................... 451Cotton M anufacturers’ Year B ook...................................................................... 537Industrial Research Laboratories........................................................................ 538Dyeing of Textile F ibers.......................................................................................... 564Proceedings of the Cotton M anufacturers’ Association.............................. 564The Chemical Industry (League of Nations i.)ocum ent)........................... 564Elementary Oiganic Chem istry............................................................................ 600Textile fabrics. The Selection and Care......................................................... 600Acetate Silk and Its D y es....................................................................................... 693Standards and Tests for Reagent Chemicals.................................................... 693A. S. T. M. Specifications for T extiles............................................................. 693

Role of Chemistry in the Fur Industry: The (A u stin )............................... 367Safety Conference: Chemical....................................'................................................ 267“ Sericin” on Silk: Researches on Proteins: IX — The Action of Pepsin

on the Protein (Shelton and Johnson).......................................................... 483Shade Cloth: Hand-Made (F r itz ) ............................................................................ 362Shifting of World Dyestuff M arkets....................................................................... 535Short Discussion of the Manufacture of Some of the Better Known

Dyestuffs: A (S to t t) .......................................................................................... 57Short Visit to the Naphthol Dyehouse and the Problems of the Naph-

thol Dyer: A (M arsson)................................................................................... 119Sidelights on the Dyeing and Cleaning Industry (F itzgera ld ).................. 271Silk Dyeing: Chemical, Treatment of Trade W astes— Part II: W astes

from (Snell and B ru ce)..................................................................................... 86Silk Dyers Work Toward Better R elations........................................................ 630Silk Industry;

Surveyed in A ssociation’s Report........................................................................ 295Silk: Naphthol AS on (L in t) ................................................................................... 432Silk Report: M id-Year................................................................................................ 665Silk Thread Dyehouse: A (R ob inson).................................................................. 209Silk W eighting: Dyers Advise Lower................................................................. 727Silk with Sulphur Colors: Dyeing (G rove-Palm er)...................................... 615Silk Yarns and Cloth: Preparing and Dyeing of (W ingate):

Part I ............................................................................................................................... 637Part II ............................................................................................................................. 667

Silverfish, an Insect Attacking Sized Textile Fibers: The ( C la r k ) . . . . 509Singeing and Finishing of Cotton Cloth: Bleaching (A lexander)........... 701Sizing: Glue as Beater.................................................................................................. 476Siziiig of Cotton Yarn: T he....................................................................................... 377Skein Dyeing Machine: The Multiple Porcelain Reel (B uhlm an)........... 738SOa as Antichlor and Final Sour (E ld rid ge)..................................................... 652S. O. C. M. A. Has Interesting Annual M eeting.............................................. 788Solvents: Danger from Static Electricity in the Handling of (Back-

haus) ............................................................................................................................ 645Solvents Made by the Hydrogenation Process— Their Manufacture and

Some of Their U ses and Applications in the Textile Industry(Killheffer) .............................................................................................................. 28

Soaps as Dry Cleaning Aids (H ubbard)............................................................... 113Soluble Vat Dyestuffs on Acetate Silk: The (M u llin )................................... 575Souring: The Purpose and Practice of (Guernsey):

Part I ............................................................................................................................... 307Part II ............................................................................................................................ 369

Specific Action of the Various Acids on W ool: The (M ullin):Part I ............................................................................................................................... 515Part II ............................................................................................................................ 550

SubjectStain Removal in Dry Cleaning Studied at Bureau of Standards............Stains from Hosiery: Removal of N igrosine.....................................................Standardization of Color Fastness ( K r a i s ) . . . . ......... ............... UStudy of Some Derivatives of Ortho-Cresotinic Anilide: A (Beattie

and Toepler) ............................................. .................... ,....................... ..................Sulphur Black from Dinitro-Phenylazo-Diphcnylamine (B ere tta ) . . . . . . . Sulphur Colors: Introduction to a Discussion on the Testing of (Bam ­

berger) ......................................................................................, ................................Sulphur Colors to Raw Cotton: The Application of (C h a se).....................Sulphur Dyeing in the Presence of Celanese (P r ic e ) .....................................Sulphur Dyestuffs: The Manufacture of (C r ist) ..............................................Sure Shots for Salesmen (Schultz) r

Part I ...............................................................................................................................Part II .............................................................................................................................Part III ...........................................................................................................................

Page1652114 0 5

402241

740303275500

1122 3 6268

Tanning with Quebracho........................................... .............................................Tautomerism of Aminated Dyes, with Variation in Concentration

(H olm es) .................................................................................................................... 429TE C H N IC A L N O TES FROM FOREIG N SO U R C E S— 41, 73, 110, 141.

173, 204, 234, 298, 334, 363, 424, 442, 480, 511, 541, 568, 602, 634,663, 694. 758. 834. . .

Technically Trained Personnel: W ays and Means of Bringing TextileM anufacturers to a Fuller Appreciation of (D iscussion, OpenF'orum, Seventh Ann. Mtg., A. A. T. C. C .) .............................................. 800

Tendency to Faster Colors: The (C onstable)......................................................... 746Testing Dyes for the Paper Industry (N o ll ) ...................................................... 84Testing Fastness to Light of Dyed Materials: Report on Experiments

with the Photoelectric Cell in Relation to (A p p e l) . ................................ 715Testing Methods Standards and Types for Determ ining the Fastness

Properties of Dyeings on Cotton, W ool and Silk:Part I— Dyed Cotton ................................................................................................. 613Part II— Dyed W ool ............................................................................................... 641Part II I— Dyed Silk .................................................................................................. 673

Tests for W ater and Soaps........................................................................................... 183Textile Chemist— What About Him? The (Communication to A. A.

T. C. C.) .................. .... ........................................................................................... 80STextile Color Card Association:

Annual M eeting ........................................................................................................... 207Trade Wastes: Chemical Treatment of— Part II: W astes from Silk

Dyeing (Snell and B ru ce).................................................................................. 86Twenty-five Years of the American Dye Industry (D er ick ) ....................... 467

Use of Alkalies in the Textile Industry: The (P h illip s ) .............................. 155U se of riydrosulphite in the Textile Industry (T hom pson)....................... 496

Value of pH to the Filter Plant (Operator: The (A ilin g ) ......................... 761Vat Colors: Dyeing with (C ad y)............................................................................. 18oVat Colors in America: The Development of (S to t t) .................................. 18Vat Dyestuffs for Strength: A Critical Study of the Accuracy of Dye-

Tesling (Draves) .................................................................................................... 337Vat Dyestuffs on Acetate Silk: The Soluble (M u llin ).................................. 575Vat Dyeing (Discussion, Open Forum, Seven.h Ann. M tg., A. A.

T. C. C.) ................................................................................................................... 803Vigoureux Printing of Textiles (R ic e ) ................................................................ 523Viscose and Cupprammonium Silk: Faslusol Dyestuffs o n ....................... 521Viscose and Cuprammonium Silks Through Color Reaction: The D if­

ferentiation of (K ra is) 444

Waste Waters o f Various Chemical Processes: Electrolytic Process forthe Regenartion of (B arthelow )........................................................................

W ater and Soap: Tests fo r ........................................................................................W etting-Out Materials: A Proposed Method of Testing the New

(Davies) .....................................................................................................................What Shall We Say and W rite?:

Part I .....................................................................................................Part II .................................................................................................................; . . ; ;

W hy Do They Say— ? (B u r t) ....................................................................................W ool: Effect of Alkalies on II— Experiments Comparing Efl’ects o f So­

dium Compounds, Potassium Compounds and Temperature (Chapin)Wool Fibre: The Physicist and the (G oodm an)................................................Wool Scouring (H a ll) ...................................................................................................W ool: Synthetic (G ausw indt)....................................................................................W ool: The Specific Action of the Various Acids on (M u ilin ):

Part I ...................................................................................Part II ..........................................................................................

W oolen Fabrics: Essentials in Dyeing Cotton Warp (R ic e ) .....................

343183

719

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Yarn: The Sizing of Cotton.................................................................................... 377Yarns: Physical Tests to Determine the Effects of Chemical arid Other

Treatments on (G oldthw ait)........................................................................... 7

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December 2(J, 1927 AMERICAN DYESTUFF REPORTER 811

Index of AuthorsAuthor Page

A L E X A N D E R D. B.—Bleaching, Singeing and Finishing of Cotton C loth.................................... 701

A L L IN G . S. F.—The Value of pH to the Filter Plant Operator............................................. 761

A P P E L , W. D.—Report on Experiments with the Photoelectric Cell in Relation to

Testing Fastness to Light of Dyed M aterials............................................. 715A U S T IN , W IL LIA M E.—

The Role of Chemistry in the Fur In d u stry .................................................... 367B A C K H A U S, A. A.— '

Dangers from Static Electricity in Handling of So lven ts....................... 645BAM BERG ER, L. L.—

Introduction to a Discussion on the Testing of Sulphur C olors........... 740B A R B A , M ILTO N C. (in collaboration with H EN R Y C. PARK ER

and W IL L A R D N. GREER) —Automatic Control of Concentration in the M ercerizing P rocess......... 49

B A R T H E L O W , DR. PA U L—Electrolytic Process for the Regeneration of the W aste W aters of

Various Chemical P rocesses................................................................................. 343B E A T T IE , FR ED ER IC K S. (in collaboration with CARL TO E—

P L E R )—A Study of Some D erivatives of Ortho-Cresotinic A n ilid e ....................... 402

B E R E T T A , A.—A Sulphur Black from Dinitro-Phenylazo-Diphenylamine........................... 241

B E R L IN E R , F. T. (in collaboration with W ALTER C. H O LM E S) —Dye Solution Phenomena with Variations in Hydrogen Ion Concen­

tration .......................................................................................................................... 81B R A D SH A W . H A M IL T O N —

Coated Textiles ............................................................................................................ 617BR O H E L , JA M E S—

The Accurate Determination of C osts................................................................. 171BR U C E , D O N A L D S. (in collaboration with FO ST ER D. SN E L L ) —

Chemical Treatment of Trade W astes: Part II— W astes from SilkDyeing .......................................................................................................................... 86

B U H L M A N N , A. W .—The M ultiple Porcelain Reel Skein Dyeing M achine................................... 738

B U R T , O. W —W hv Do They Say— ?............................................................................................... 686

CAD\% W IL L IA M H .—D yeing with Vat C olors.............................................................................................. 186

C A D Y , W . H. (and W . D. A P P E L )—Report of Sub-Committee on Light Fastness— I. Light Exposures,

Series 3 ...................................................................................................................... 707C H A P IN , DR. H. C —

Effect of Alkalies on W ool: II— Experim ents Comparing Effects ofSodium Compounds, Potassium Compounds and Tem perature........... 90

C H A SE , H. M .—The Application of Sulphur Colors to Raw C otton...................................... 303

C H R IST , W IL H E L M (and CARL JE L L L IN E K )—Process of Producing Ice Clolors on C otton...................................................... 706

C H R IST IS O N . H U G H —Interesting Experiences and Observations at the Southern M eeting. . 89

C L A F L IN . A LA N A .—Nineteenth Century Chemistry and Twentieth Century N e e d s ........... 1The New Education and an Old Industry ......................................................... 318

CLARK , C. O.—The Silverfish, an Insect Attacking Sized Textile F ibers....................... 509

CLARK , W . M A N SF IE L D —D yes in Physiological Research............................................................................... 169

C O FFM A N , VICTO R (in collaboration with ROBERT JAEGER) —Buffer Substances in the T extile Industry ......................................................... 177

COOK, A. A .—The Relation of Chemistry to the Textile Industry...................................... 222

C R IST , JO H N L.—The M anufacture of Sulnhur D yestuffs........................................................... 500

DAM O N, FR A N C E S H ALL—Action of Persoiration on T ex tiles ...................................................................... 508

D A V IE S, H A R R Y R.—A Proposed Method of Testing the New W etting-Out M aterials........... 719

DERICK , C. G.—Tvventv-five Years o f the American Dye Industry...................................... 467

DOGGETT, C H A R L ES S.—Ira Rem sen— H is Life and W ork s...................................................................... 309

D R A V E S, CARL Z.— ^ ^A Critical Study of the Accuracy of Dye-Testing Vat Dyestuffs for

Strength ......................................................................................................................E D W A R D S, W . A. (in collaboration with G. E. H A R D C A ST L E )—

Dyeing of H osiery Containing M ixed F ibers.................................................. 581EL D R ID G E , JO H N R.— ^

SO‘j as Antichlor and Final S ou r......................................................................... 652FAW CETT, W A L D E N —

Dyestuff Interests to Benefit bv Protection of Industrial P ro p er ty ... 589 F ISK E . S. W .—

The Enzymes of Diastase in the T extile In d u stry ....................................... 135FR IT Z , O. A .—

Hand-Made Shade C loth........................................................................................... ’ 62FITZ G ER A L D , JO H N F.—

Sidelights on the Cleaning and Dyeing Industry ......................................... 271G A D D V , B. D .—

The F inishing of H osiery ......................................................................................... 1^4G A N S W IN D T , A .—

Synth'itic Wool .................................................................. ........................................G O LD M A N , M. H. (in collaboration with C C. H U B B A R D )—

Rem oving Stains from Cellulose Acetate R ayons......................................... 237G O LD T H W A IT , C H A R L ES F .—

An Experience with Manganese in T extile W ater........................................ oU5Physical Tests to Determine the Effects of Chemical or Other ireat-

men^s on Y arns......................................................................................................... ^G O O D M A N , H, A .— . . .

The Fiber the True T extile U n it ......................................................................... 436The Physicist and the Wool F iber....................................................................... 579

Author PageGRADY-M ILLER, H .—

Multi-Color Effects on Multi-Fibered H osiery.................................................. 314GREER, VV'ILLARD N. (in collaboration with H E N R Y C. PARK ER

and M ILTON B. BAR BA) —Automatic Control of Concentration in the Mercerizing P rocess........... 49

GROVE-PALM ER, FREDER ICK —Dyeing Silk with Sulphur C olors.......................................................................... 615N otes on Bleaching of Rayon and Cotton H osiery...................................... 729

G U ER N SE Y , F. H .—The Purpose and Practice of Souring:

Parc I ................................................................................................................ 307Part II .............................................................................................................. 369

HALL, SE L D E N —W ool Scouring .......................................................................................................... 776

H A R K IN S, A. T —Ammonium Persulphate for O xidation............................................................. 736

H A SK EL L, W ALTER F.—Some Experiences with Naphthol C olors....................................................... 245

H A TH O R N E , B. L.—Hosiery Dyeing ........................................................................................................... 399

H O LM ES, W ALTER C. (in collaboration with F. T. BE R LIN ER ) —Dye Solution Phenomena with Variations in Hydrogen Ion Concen­

tration ............................................................................................................................ 81Recent Advances in the Identification of Azo D y es.................................... 407Tautomerism of Aminated Dyes, with Variations in C oncentration ... 429

HOOLEY, L. J.—Dyes and Their Application: Recent Technical Progress....................... 434Ori Color Names: The Art of Word M aking............................................... 525

H U B B A R D , C. C.—Soaps as Dry Cleaning A id s................................................................................... 113

H U B B A R D . C. C (in collaboration with M. H. G O LD M A N )—Removing Stains from Cellulose Acetate Ravons............................................. 237

H U B B A R D , W. B.—Initial Treatment of Chemical Burns of the E y e ........................................ 596

JACKSON, JO H N E.—Work Done to Increase the Resistance of Artificial Silk to W a te r ... 806

JAECK, JO SEPH P.—Indigo Dye .................................................................................................................... 158

JAEGER, ROBERT (in collaboiation with VICTOR C O FFM A N )—Buffer Substances in the Textile Industry....................................................... 177

JE L L IN E K , KARL (and W ILH ELM C H R IST )—Process of Producing Ice Colors on Cotton.................................................... 706

JO H N SO N , H. (in collaboration with P. ST A U B ) —A Proposed New Food D ye............................................................................... 373

TOHNSON, TREAT B. (in collaboration with ELBERT M. SH E L ­T O N )—

Researches on Proteins: IX-—The Action of Pepsin on the Protein“Sericin” of S ilk ................................................................................................. 483

K IL L H E FFE R , DR. E. H .—Solvents Made by the Hydrogenation Process— Their Manufacture

and Some of Their U ses and Applications in the Textile In d u stry .. 28 KING, T. C —

The Dyeing and Finishing of Celanese............................................................. 494K N O W LA N D , D A N IE L P .—

The Eriochrome C olors.............................................................................................. 191KLHJL, C. W .—

The Practical Application of the Indigosols.................................................... 64LEE, DR. R. E.—

The Enzymes .................................................................................................................. 126LIE PA T O FF, S.—

Determining the Liquefying Capacity of Diastatic Products.................. 584L IN T . H .—

Naphthol A S on S ilk ................................................................................................ 432M ARSH , CH ARLES W .—

Electro-Chlorination in T extile Bleaching.............................................................. 650M A R SSO N , R. W .—

A Short V isit to the Naohthol D yehouse........................................................ 119M O RN IN G STA R . ROBERT P.—

Rayon Processing ..................................................................................................... 795M O RRIS, M ERRILL—

The Textile Chemist— W hat About Him? (Com m unication).................. 805M U L LIN , CH ARLES E.—

The Identification of the Rayons............................................................................ 145“Colloid Dynamics” in the Textile In d u stry .................................................... 239The Specific Action of the Various Acids on W ool:

Part I ................................................................................................................. 515Part II .............................................................................................................. 550

The Soluble Vat Dvestuffs on Acetate S ilk ...................................................... 575NOLL, DR A U G U ST —

Testing Dyes for the Paner Industry............................................................... 84O LNEY, L O U IS A.—

W hat Constitutes an Adequate Education for a Textile Chemist andColorist? . . .y.............................................. ' . ......................................................... 791

ORM AND, H. W .—The Bleaching of Cotton Piece G oods............................................................. 312

PARK ER, H E N R Y C. (in collaboration with W IL LA R D N. GREER and M ILTO N B. B A R B A )—

Automatic Control of Concentration in the Mercerizing P rocess........... 49PARK ER, LEO T.—

W ho Infringes a Patent and How Can Infringem ent Litigation BeAvoided ? 67

P H IL L IP S , W. E.—Liquid Chlorine in T extile B leaching............................................................... 6 ’SThe U se of Alkalies in the Textile Industry ................................................ 155

PRICE, H A R R Y —Dyeing of Celanese Brand Yarns and Fabrics............................................... 214Sulphur Dveing in the Presence of C elanese.................................................. 27S

PU C K ETT , W. W .—Package Dveing in Closed M achines.................................................................. 316

P U T N A M , LE V ER E TT N .—The D yeing of F e lt ........................................................................................................ 95

812 AMERICAN DYESTUFF REPORTER Vol. XVI, No. 22-

Author PageRICE, GEORGE—

Vigoureux Printing of T extiles............................................................................. 523The Function of Enzymes in Bleaching and D yeing .................................... 555The Bleaching and Dyeing of Knit G oods...................................................... 578Essentials in Dyeing Cotton Warp W oolen Fabrics.................................. 608

R O B IN SO N , E. W .—A .Silk Thread D yehouse.......................................................................................... 209

ROGERS, A L L E N —The Dressing and Dyeing of F urs...................................................................... 248

ROSE, R. E.—Modern Theories of D yeing................................................................................... 14Research as a B usiness............................................................................................ 489

SA N SO N E , R A FFA E LE—Practical H ints on the Production of Briglit Colors on Textile Fab­

rics:Part X X V II ................................................................................................... 280Part X X V III ................................................................................................. 374Part X X IX ..................................................................................................... 408Part X.XX ....................................................................................................... 445Part X X X I ..................................................................................................... 476Part X X X II ................................................................................................... 532Part X X X III ................................................................................................. 623Part X X X IV ................................................................................................ 671

SC H IL LIN G ER , W IL LIA M S.—Amzo— A W ashing and Bleaching A gent........................................................ 349

SCH ULTZ, ST A N L E Y —Sure Shots for Salesm en........................................................................ 112, 236, 268

SH EL TO N , ELBERT M. (in collaboration with TREAT B. JO H N ­S O N )—

Research on Proteins: IX — The Action of Pepsin on the Protein“Sericin” of S ilk ..................................................................................................... 483

SM O LEN S, H. G.—Bleaching with Hydrogen P eroxide.................................................................. 545

SN EL L, FO STER D.—Chemical Treatment of Trade W aste: Part I— Dves in G e n e r a l... . 54

SN EL L, FOSTER D. (in collaboration with D O NALD S. BRU CE) —Chemical Treatment of Trade W astes: Fart II— W astes from Silk

Dyeing ......................................................................................................................... 86

Page

747

461

AuthorSO U T H E R N , R, IL—

Practical Laboratory M ethods....................................................................ST E V E N S, RAYM OND R.—

Piece Dye K ettles................................................................................................STILLM A N , J. W .— . .

Prevention of Accidents in Chemical Laboratories....................................... o iySTOTT, P, H.__

A Short Discussion of the Manufacture of Some of the Better KnownDyestuffs ..........................................................., .........................................................

The Develojmient of Vat Colors in Am erica..................................................... 1°TAYLOR, W. A .— , „ , , ,

Control of Acidity and Alkalinity by Hydrogen Ion M easurem ents.. 351 “T E X T R IO N ”—

Th.‘ Loose Cotton Dyeing Dciiartment................................................................ 657T H O M PSO N , A. R.— .

I^ses of Hydrosulphite in the Textile I n d u s t r y . . . . . . . . . . . . . . . ......... 4yo.Kieropon— New Process for Bleaching Colored Stripe M ateri^s. . . . 820

TO EPLER, CARL (in collaboration with FR E D E R IC K S. BEAT- T IE )—.

A Study of Some D erivatives of Ortho-Cresotinic A n ilide..................... 402W ALLACE, E.V. D.— . , ^

The Elimination or Control of Drippage and Steam -Vapor in Dye-houses .......................................................................................................................... 646.

W A LT O N , ROBERT P.—“Activin" ........................................................................................................................

W ARNER, J. F .— ,Some Methods of Handling Cotton and Rayon Piece ( lo o d s..................... 824

W H IT E , NOEL D.—The Dyer’s School of Experience................................197, 227, 290, 386, 451Chasing Troubles in the D yehouse...................................................................... 742

W IN G A TE, W. IL—Preparing and Dyeing of Silk Yarns and Cloth:

Part I ............................................................................................................ 637P an II ............................................................................................................ 667

W U T H , DR. B.—The (Themical Constitution and Fastness Properties o f C olors............... 22

ZISM A N , L O l'IS S.—Dip Dyeing H osiery .................................................................................................... 817

Iniiex to Proceedings of American Association of Textile Chemists and Colorists

January 1, 1927, to December 31, 1927, Inclusive

PageAlkalies in the Textile Industry: The Use of (Phillips). Paper........... 69Alkalies on W ool: Effect of— II. Experiments Comparing Effects of So­

dium Compounds, Potassium Compounds and Temperature (Chapin).Paper ........................................................................................................................ 42

Ammonium Persulphate for Oxidation (H arkins). Paper........................... 198Amzo— A Washing and Bleaching Agent (Schillinger). Paper.................. 133Antichlor and Final Sour: SO3 as (Eldridge). Paper.................................. 172Artificial f ilk to Water: Work Done to Increase the Resistance of

(Tackson). Paper ................................................................................................ 252A SSO C IA T IO N (Parent Body) —

Sixth Annual Meeting, Dec. 3 and 4, ’2 6 ........................................................ 1Saturday Afternoon Session:

Physical Tests to Determine the Effects of Chemical or OtherTreatments on Yarns (Goldthwait). Paper............................................... 1

Modern Theories of Dyeing (R ose). Paper....................................... 8The Development of Vat Colors in America (S tott). P a p e r . . . . 12 The Chemical Constitution and Fastness Properties of Colors

(W uth). Paper .................................................................................................... 16Solvents Mj-(le by the Hydrogenation Process, Their Manufacture

and Some of Their U ses in the Textile Industry (Killheffer). Pap'er 22Research Associate .................................................................................................... 147Seventh Annual Meeting^ Dec. 2 and 3, ’2 7 ................................................... 213

Seventh Annual Dinner:Address of Dr. Louis A. O lney................................................................... 214Address of Dr. Frank .A.lvah Parsons...................................................... 216Address of F*rank D. Cheney....................................................................... 219Address of Col. H. A. M etz....................................................................... 221Address of Dr. E. H. Killheffer................................................................... 222

Open Forum Session:What Constitutes an Adequate Education for a Textile Chemist

and ('olorist? (Olney and R o se)..................................................................... 237Rayon Processing (M orningstar). Paper............................................... 2^1Vat Color Dyeing. D iscussion................................................................... 244W ays and Means of Bringing Textile Manufacturers to a Fuller

A])preciation of the Value of Technicallv Trained Personnel. Dis-cussiim ...................................................................................................................... 246

Logwood Dyeing on Silk. D iscussion...................................................... 248N’at Dyeing. D iscussion................................................................................ 249The Textile Chemist— What About Him? (M orris). Communica­

tion ................................... 251Saturday Morning Session:

W’ork Done to Increase the Resistance of Artificial Silk to Water(Jackson). Paper ............. 252

Dip Dyeing Ilosiery (Zisman). Paper.........*........................................ 255KitM'opon— New Process for Bleaching C'olored Stripe C'otton Ma­terial (Thom])son). P a i i e r . . . . ....................................................................... 258

Some Methods of Handling Cotton and Rayon Piece Goods (W ar­ner). Paper ........................................................................................................... 262

A U T H O R S—Appel, W. D .!

Report on Experiments with the Photo-Electric Cell in Relation to Testing Fastness to I-ight of Dyed M aterials........................................... 187

PageBamberger, L. L .:

Paper: Introduction to a Discussion on the Testing of SulphurColors (So. Cent. Sec., Mtg., Oct. 1, ’2 7 ) ............................................. 202

Buhlmann, A. W .:Paper: The Multiple Porcelain Reel Skein-Dyeing Machine (N . Y.

Sec. Mtg., Oct. 21, ’2 7 ) .................................................................................... 200-Cady, W. H. (in collaboration with W. D. Appel) :

Report of the Sub-Committee on Fastness to Light: I. Light E x­posures, Series 3 ................................................................................................. 179-

Chapin, Dr H. C .:Paper: Effect of Alkalies on W ool: II— Experiments Comparing

Effects of Sodium Compounds, Potassium Compounds and Tem­perature (N. N. E. Sec. Mtg., Jan. 22, ’2 7 ) ......................................... 42‘

Christison, Hugh:Paper: Interesting Experiences and Observations at the Southern

Meeting (No. N. E. Sec. Mtg., Jan. 22 ’2 7 ) .............................. 41Claflin, Alan A.:

Paper: The New Education and an Old Industry (Lowell Jr. Sec.Mtg., Apr. 21, ’2 7 ) .............................................................................................. 124

Constable, Henry;Paper: The Tendency to Faster Colors (Pied. Sec. M tg , Oct 1.5

„ , ’27) 20aCook, A. A :

Paper: The Relation of Chemistry to the Textile Industry (PhilaSec. Mtg., Jan. 28, ’2 7 ) ............................................................................. 98.

Doggett, Charles S . :Paper: Ira Remsen— H is Life and Works (Pied. Sec. M tg., Apr

16, ’27) ............................................................................................... ,15Davies, H. R.: ..................

Paper: A Proposed Method of Testing the New W etting-Out Ma­terials (R. I. Sec. Mtg., Oct. 21, ’2 7 ) ................................ 191

Eldridge, John R .:Paper: SO3 as Antichlor and Final Sour (N . Y, Sec. Mtg., Sept.

Fiske, S. W ,: .......................................Enzymes of Diastase in the Textile Industry (N YSec Mtg., Jan. 28, ’2 7 ) ......................... -i v . .

Gaddy, B, D .: ................................................ ^7Paper: The Finishing of Hosiery (Pied. Sec. Mtg., Tan. 22 ’27) 7?Goldthwait, Charles F . : o . , /Paper: Physical Tests to Determine the Effects of Chemical or

r- O th " Treatments on Yarns ( 6th Ann. Mtg Dec. 4, ’26) 1Grady-Miller, H .: . 7 . . . iMulti-Color Effects on Multi-Fibered H osiery (Pied. Sec.

Hall, Selden: ..................................................Paper: Wool Scouring (N. N. E. Sec. Mtg., Oct. 22, ’27) 226

Harkins, A. 1 .- ' ..............Tape'-: Ammonium Persulphate for Oxidation (N . Y. Sec. M tg.,

Haskell, Walter L .: ................................................ 'Napbthol Colors, Especially with

Naphthol A S Red (N o. N. E. Sec. Mtg., Mar. 5, ’2 7 ) .............. 1Q3,

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PageJackson, John E.:

Paper: Work Done to Increase the Resistance of Artificial Silk to\ \ ’ater (Saturday M orning Session, 7th Ann. M tg .)........................... 252

Jaeck, Joseph P . :Paper: Indigo Dye (Pied. Sec. Mtg., Jan. 22, ’2 7 ) ................................ 72

Killheffer, Dr. E. H .:Paper: Solvents Made by the Hydrogenation Process, Their Manu­

facture and Some of Their U ses and Aplications in the TextileIndustry ( 6th Ann. Mtg.. Dec. 4, ’2 6 ) .................................................. 22

Kuhl, C. W :Paper: The Practical Application of the Indigosols (Phila. Sec.

Mtg., Nov. 19, ’2 6 ) ............................................................................................. 38Lee, Dr. R. E .:

Paper: The Enzymes (N . Y. Sec. Mtg., Jan. 28, ’2 7 ) ......................... 58Marsh, Clarence W .:

Paper; E’.ectro-Chlorination for Textile Bleaching (N . Y. Sec.Mtg., Sept. 23. ’2 7 ) ............................................................................................. 170

Marsson, R. W .;Paper: A Short V isit to the Naphthol Dyehouse (N . Y. Sec. Mtg.,

Jan. 28, ’2 7 ) .......................................................................................... • ............. 51Morningstar, Robert P .:

Paper: Rayon Processing (Open Forum Session, 7th Ann. M tg .) . . 241 Olney, Louis A.:

Discussion: What Constitutes an Adequate Education for a Textile Chemist and Colorist? (Open Forum Session, 7lh Ann. M t g . ) . . . . 237

Ormand, H. W .:Paper: Bleaching of Cotton Piece Goods (Pied. Sec. Mtg., Apr.

16, ’27) ................................................................................................................... 118Phillips, W . E .:

Paper: The Use of Alkalies in the Textile Industry (Pied. Sec.Mtg., Jan. 22, ’2 7 ) ........................................................................................... 72

Paper: Liquid Chlorine in Textile Bleaching (N . Y. Sec. M:;g.,Sept. 23, ’2 7 ) .......................................................................................................... 168

Price, Harry:Paper: The Dyeing of Celanese Brand Yarns and Fabrics (N . Y.

Sec. Mtg., Feb. 25, ’2 7 ) ................................................................................ 89Puckett, W. W .:

Paper; Package Dyeing in Closed M achines (Pied. Sec. Mtg., Apr.16, ’27) ..................................................................................................................... 122

Putnam, Leverett N.:Paper: The Dyeing of Felt (N o. N. E. Sec. M tg., Jan. 22. ’2 7 ) . . . 47

Rogers, Allen:Address: The Dressing and D yeing of Furs (N . Y. Sec. Mtg., Mar.

25, ’27) ..................................................................................................................... 106Rose, Dr. R. E .;

Paper: Modern Theories of Dyeing ( 6th Ann. Mtg., Dec. 4, 2 6 ) . . 8Schillinger. W illiam S :

Paper: Amzo— A W ashing and Bleaching Agent (N . Y. Sec. Mtg.,Apr. 22, ’2 7 ) .......................................................................................................... 1^^

Stott, P. H .: . , , APaper: The Development of Vat Colors in America (6th Ann.

Mtg., Dec. 4, ’2 6 ) .................................................................... 12Paper; A Short Discussion of the M anufacture of Some of the

Better Known Dyestuffs (N . Y. Sec. M tg., Dec. 10, ’2 6 ) ............. 31Southern, R. H .: . ,

Paper: Practical Laboratory Methods (Pied. Sec. M tg., Oct. 15,'27) ............................................................................................................................ 209

Taylor, W . A .: -,t t atPaper: Control of Acidity and Alkalinity by Hydrogen Ion Meas­

urements (Phila. Sec. M tg., Apr. 22, ’2 7 ) ...................................... .. • • 125Thompson, A. R., Jr.: ^ , r- • /->

Paper: Kieropon— New Process for Bleaching Colored ,Sinpe Cot­ton Material (7th Ann. M tg., Saturday Morning S ess io n )........... 258

W allace, E. V. D .: i o atPaper; The Elimination or Control of Drippage and Steam Vapor

in Dyehouses (N . Y. Sec. Mtg., Apr. 22, ’2 7 ) .................................... 129W arner, John F .: ^ -r.- i

Paper: Some Methods of Handling Cotton and Rayon Piece Goods(7th Ann. M tg., Saturday Morning S ess io n )......................................... 262

W hite, Noel D .: ^ o at..Paper: (Phasing Troubles in the Dyehouse (So. Cent. Sec. Mtg.,

Oct. 1, ..................................................................................................................... 204W uth, Dr. B.; . i t - t> x ^Paper: The Chemical Constitution and Fastness Properties ot

Colors (6th Ann. Mtg., Dec. 4, ’2 6 ) ........................................................... 16Zisman, Louis S . : , , o i at •Paper: Dip Dyeing Hosiery (7th Ann. Mtg., Saturday Morning

Session) ............................................................................... .......................... U ' ^Bleaching Colored Stripe Cotton Material: Kieropon— N ew Process tor

(Thom pson). Paper ........................................ ................................................... 258Bleaching of Cotton Piece Goods (Ormand). P a p e r . . . . . . . . . . . ..............Celanese Brand Yarns and Fabrics: The Dyeing of (Price). P a p e r ... 89Chasing Troubles in the Dyehouse (W hite). Paper ......... VC ' VwChemical Constitution and Fastness Properties of Colors: the (W uth).

C o n J o fo f Acidity and Alkalinity by Hydrogen Ion M easurements (Tay-

Cotton'^and^Rayon Piece Goods: Some Methods of Handling (W arner). ^Paper ............................................................................................................................

C O U N C IL— anMeeting, Dec. 3, ........................................................................................................Meeting, Jan. 14, .................... .................................................................................. , , ,Meeting, Mar. 14, ........................................................................................................M eeting. Apr. 29, ...................................................................................................... . . .M eeting, June 17, .................... .................................................................................. . j r

Development of Vat Colors in America: The (Stott). P ap e i....................Dip D yeing Hosiery (Zism an). P a p e r .......... ........................................................ ,Dressing and Dyeing of Furs: The (Rogers) . . . ...........................................Dyeing and Finishing of Celanese: The (K ing). P aper.............................Dyeing: Modern Theories of (R ose). P aper....................................................Dyeing of Felt: The (Putnam ). Paper...............................................................D yeing with Vat Colors (C ady). P a p e r . . ............................. . ’ ‘ ’ Trlr ’ 1Effect o f Alkalies on W ool: I I -E x p e r im e n ts Comparing Effects of

Sodium Compounds, Potassium Compounds and Temperature(Chapin). Paper ...............* *' u w ' ' U ' 'A .................................................. 170Electro-Chlorination in Bleaching (M arsh) Paper

Elimination or Control o f Drippage and Steam Vapor in Dyehouses.The (W'allace). P aper........................................................................................ jg

in z ^ m e r o f ^ ^ ^ a J i^ in J ^ T e x t l i e ;in d u ^ ;y i^ThV (V isk e);' -papem !! 57Eriochrome Colors: The (K now land). , Paper. .........................Faster Colors: The Tendency to (Constable). Paper..................................

PageFastness to Light—

[See under “Research Committee” and “Light Fastness” ]Fastness Properties of Dyestuffs: The Chemical Constitution and

(W uth). Paper ..................................................................................................... 16Hosiery: The Finishing of (Gaddy). Paper.................................... .. . ............ 67Hydrogen Ion M easurements: Control of Acidity and Alkalinity by

(Taylor). Paper .................................................................................................... 125Hydrosulphite in the Textile Industry: U ses of (Thompson). P aper.. 158Indigo Dye (Jaeck). Paper....................................................................................... 72Interesting Experiences and Observations at the Southern M eeting

(Christison) ............................................................................................................ 41Ira Remsen— H is L ife and W orks (D oggett). P a p e r .. .^ ......................... 115Kieropon— New Process for Bleaching Colored Stripe Cotton Material

(Thompson). Paper ............................................................................................ 258Laboratory Methods: Practical (Southern). Paper....................................... 209Light Fastness: Report of the Sub-Committee on (Cady and A ppel):

I. Light Exposures, Series 3 ..................................................................................... 179'Light Fastness: Report on Experiments with the Photoelectric Cell in

Relation to Fastness to Light of Dyed Materials (A p p e l).................... 187Liquid Chlorine in Bleaching (Phillips). Paper............................................. 168-LOW ELL JU N IO R SECTIO N—

Meeting, Feb. 10, ’2 7 ................................................................................................ 80'Dyeing with Vat Colors (Cady). Paper.......................................................... 80

Meeting, Apr. 21, ’2 7 ................................................................................................ 124The New Education and an Old Industry (Claflin;. Paper............. 124

Manufacture of Sulphur Dyestuffs: The (Crist). Paper........................... 162Modern Theories of Dyeing (R ose). Paper........................................................ 8-Multi-Color* Effects on Multi-Fibered Hosiery (Grady-M iller). P ap er.. 120 Naphthol Dyehouse and the Problems of the Naphthol Dyer: A Short

Visit to the (M arsson). Paper.......................................................................... 51New Education and an Old Industry: The (Claflin). Paper.................... 124NEW YORK SECTIO N—

Meeting, Dec. 10, ’2 6 ................................................................................................ 31A Short Discussion of the Manufacture of Some of the Better

Known Dyesluffs (Stott). Paper................................................................... 31Meeting, Jan 28, ’2 7 ................................................................................................... 51

A Short V isit to the Naphthol Dyehouse and the Problems of theNaphthol Dyer (M arsson). Paper.................................................................. 51

The. Enzymes of Diastase in the Textile Industry (F iske). P ap er.. 57"The. Enzymes (L ee). Paper.............................................................................. 58-

Meeting, Feb. 25, ’2 7 .................................................................................................. 89-The Dyeing of Celanese Brand Yarns and Fabrics (Price). Paper 89

Meeting, Mar. 25, ’2 7 ................................................................................................ 106The i)ressing and Dyeing of Furs (R ogers). A ddress......................... 106-

Meeting. Aj)r. 22, ’2 7 ................................................................................................ 129The E'imination or Control of Drippage and Steam Vapor in Dye-

houses (W allace). Paper.............................................................................. 129’Amzo— A W ashing and Bleaching A gent (Sch illin ger)......................... 133

Meeting, May 27, ’2 7 ................................................................................................ 143Annual Outing ........................................................................................................... 150M eeting Sept. 23, ’2 7 ................................................................................................ 167

Liquid Chlorine in Textile Bleaching (Phillips). Paper...................... 168.E'ectro-Chlorination for Textile Bleaching (M arsh). Paper........... 170S(J:3 as Antichlor and Final Sour (Eldridge). Paper........................... 172

Meeting, Oct. 21, ’2 7 .................................................................................................. 197Ammonium Persulphate for Oxidation (H arkness). Paper................ 198'The Multiple Porcelain Reel Skein-Dyeing Machine (Buhlmann).

Paper ....................................................................................................................... 200NO R TH ER N NEW ENG LAND SEC TIO N —

Meeting, Jan. 22, ’2 7 ................................................................................................ 41Interesting Experiences and Observations at the Southern M eeting

eChrisNson) ......................................................................................................... 41Effect of Alkalies on W ool: II— Experiments Comparing Effects of

Sodium Compounds, Potassium Compounds and Temperature(Chapin). P a p e r ................................................................................................ 42

The Dyeing of Felt (Putnam ). Paper........................................................ 47"M eeting, Mar. 5, ’2 7 ................................................................................................ 103

Some Experiences with Naphthol Colors (H askell). Paper................ 103i^nnual Outing ............................................................................................................ 148Meeting, Oct. 22, ’2 7 ................................................................................................ 224

Wool Scouring (H all). Paper.......................................................................... 226Package Dyeing in Closed Machines (Puckett). Paper................................ 122'PA PE R S—

Ammonium Persulphate for Oxidation (H ark in s)...................................... 198Amzo— A W ashing and Bleaching Agent (S ch illin ger)............................. 133Bleaching of Cotton Piece Goods (O rm and)................................................. 118Chasirg Troubles in the Dyehouse (W h ite ) .................................................... 20-VChemical Constitution and Fastness Properties of Colors: The

(W uth) • . • ; ........................./ ........................................................................... 16-Control of Acidity and Alkalinity by Hydrogen Ion Measurements

(Taylor) .................................................................................................................... 135Development of Vat Colors in America: The (S to t t) ................................ 12Dip Dyeing Hosiery (Z ism an)............................................................................... 255Dressing and Dyeing of Furs: The (R ogers)............................................... 106Dyeing and Finishing of Celanese: The (K in g )........................................... 156Dyeing of Celanese Brand Yarns and Fabrics: The (P r ic e ) ................ 89Dyeing of Felt: The (P u tn am )............................................................................ 47Dveing with Vat Colors (C ad v).......................................................................... 80Effect of Alkalies on W ool: IT— Experimen'-s Comparing Effects of

Sodium Compounds, Potassium Compounds and Temperature(Chapin) 42

Electro-Chlorination for Textile Bleaching (M arsh ).................................. 170Elimination or Control of Drippage and Steam Vapor in Dyehouses:

The (W allace) ....................................................................................................... 129'Enzymes, The (L e e ) ................................................................................................. 58Enzymes of Diastase in the Textile Industry: The (F isk e ) ..................... 57Eriochrome Colors: The (K now land)............................................................... 85Finishing of Hosiery: The (G addy)................................................................. 67Indigo Dye (Jaeck )................................................................................................... 72'Introduction to a Discussion on the Testing of Sulphur Colors (Bam ­

berger) ....................................................................................................................... 202Ira Remsen— H is Life and W orks (D o g g ett) .................................................. 115Kieropon— New Process for Bleaching Colored Stripe Cotton Material

(Thompson) .............................................................................................................. 258'Liquid Chlorine in T extile Bleaching (P h illip s)........................................... 168Manufacture of Sulphur D yes‘ uffs; The (C r ist) ......................................... 162Modern Theories of Dyeing (R o se ) .................................................................... gMulti-Color Effects on Multi-Fibered Hosiery (G rady-M iller)................. 120Multiple Porcelain Reel Skein-Dyeing Machine (B uhlm ann)...................... 200New Education and an Old Industry: The (C laflin ).................................. 124Package Dyeing in Closed Machines (P u ck ett)............................................. 122Physical Tes^s to Determine the Effects of Chemical or Other Treat­

ments on Yarn (G oldthw ait)............................................................................. 1

^14 AMERICAN DYESTUFF REPORTER VoL XVI, No, 22

PagePractical Application of the Indigosols: The (K u h l) ................................ 38Practical Laboratory Methods (S ou th ern ).......................................................... 209Proposed N ew Method for Testing the New W etting-Out Materials:

A (D avies) ............................................................................................................... 191Relation of Chemistry to the Textile Industry: The (C ook ).................. 98Research as a Business (R o se )............................................................................. 151Short Discussion of the M anufacture of Some of the Better Known

Dyestuffs: A (S to t t) ............................................................................................... 31Short V isit to the Naphthol Dyehouse: A (M arsson )................................ 51SOa as A nlichlor and Final Sour (E ld rid ge)............................................... 172Solvents Made i)v the Hydrogenation Process, Their Manufacture and

Some of Their U ses and Applications in the T extile Industry (Kill-heffer) .......................................................................................................................... 22

Some Experiences with Naphthol Colors, Especially with Naphthol ASRed (H askell) .......................................................................................................... 103

Some Methods of Handling Cotton and Rayon Piece Goods (W arner) 262Tendency to Faster Colors: The (C onstable)............................................... 208Use of Alkalies in the Textile Industry: The (P h illip s)........................... 69U ses of Hydrosulphite in the Textile Industry (T hom pson).................. 158VV'ool Scouring (H a ll) ............................................................................................... 226Work Done to Increase the Resistance of Artificial Silk to Water

(Jackson) ................................................................................................................... 252P H IL A D E L P H IA SEC T IO N —

M eeting, Nov. 19, ’2 6 ................................. 38The Practical Application of the Indigosols (K uhl). Paper.............. 38

M eeting, Jan. 28, ’2 7 ................................................................................................... 77The Relation of Chemistry to the Textile Industry (Cook). Paper 98

Meeting, Feb. 25, ’2 7 .............................................................. '................................. 77Meeting, Apr. 22, ’2 7 ................................................................................................. 134

Control of Acidity and Alkalinity by* Hydrogen Ion Measurements(Taylor). Paper .............................................................................................. 135

M eeting, Nov. 11, ’2 7 ................................................................................................. 235Physical Tests to Determine the Effects of Chemical or Other Treatments

on Yarn (Goldthwait). Paper.......................................................................... 1PIE D M O N T SEC T IO N —

Meeting, Jan. 22, ’2 7 . . . . .......................................................................................... 67The Finishing of Hosiery (Gaddy). Paper............................................... 67The Use of Alkalies in the Textile Industry (Phillips). P a p e r . . . . 69Indigo Dye (Jaeck )................................................................................................. 72

Meeting, Apr. 16, ’2 7 ................................................................................................ 115Ira Kemsen— H is Life and Works (D oggett). Paper......................... 115Bleaching of Cotton Piece Goods (Ormand). Paper............................. 118Multi-Color Effects on M ulti-Fibeted Hosiery (G rady-M iller)........... 120Package Dyeing in Closed Machines (P u ck ett).......................................... 122

Meeting, July 16, ’27 (with South-Central S ectio n )................................... 156The Dyeing and Finishing of Celanese (K ing). Paper...................... 156L^ses of Hydrosulphite in the Textile Industry (Thompson). Paper 158The Mai'ufacture of Sulphur Dyestuffs (C rist)........................................ 162

M eeting, Oct. 15, ’2 7 ................................................................................................ 207The Tendency to Faster Colors (C onstable)............................................... 208Practical Laboratory Methods (Sou th ern )................................................. 209

Practical Application of the Indigosols: The (K uhl). Paper.................. 38Rayon Processing (M orningstar). Paper............................................................ 241Relation of Chemistry to the Textile Industry: The (Cook). Paper. . . . 98Report on Experiments with the Photoelectric Cell in Relation to Test­

ing Fastness to Light of Dyed Materials (A p p e l).................................... 187

PageResearch as a Business (R ose). Paper.................................................................. ^ 1RESEARCH COM M ITTEE—

Meeting, Jan. 14, ........................................................................................................Research Associate ......................................................................................................Meeting, Mar. 11, ........................................................................................................Meeting, June 17, ........................................................................................................ R ;M eeting, (Jet. 7, ’2 7 .................................................................................................Report of the Sub-Committee on Light Fastness: I. Light Exposures,

.Series 3 (C'ady and A p p el).................................................................................. ^79R H O DE ISL A N D SEC T IO N —

M eeting, Dec. 14, ................................................................................................... "9Meeting, Jan. 21, ’2 7 .................................................................................................. 76

The Eriochrome Colors (K nowland). Paper.............................................. 85Meeting, Feb. 11, .................................................................................................. 77M eeting, Mar. II, ..................................................................................................Meeting, Apr. 29, .................................................................................................. ^27

Research as a Business (R ose). Paper....................................................... 151Meeting, Oct. 21, ’2 7 ............................................................... .............................

A Proposed Method of Testing the New W etting-Out Materials(D avies). Paper ................................................................................................ i^ l

Meeting, Dec. 5, ’2 7 ..................................................................................... 266Short Discussion of the Manufacture of Some of the Better Known

Dyestuffs: A (S tott). Paper........................... ............................................... 31Skein-Dyeing Machine: The Multiple Porcelain Reel (Buhlm ann).

Paper ..................................................................................... 200Solvents Made by the Hydrogenation Process, Their M anufacture and

Some of Their Uses and Applications in the Textile Industry(Killhcffer). Paper ................................................ 22

Some Experiences with Naphthol Colors, Especially with Naphthol ASRed (H askell). Paper........................................ 103

SO UTH -CENTRAL SECTIO N—M eeting, Apr. 30, ’2 7 ................................................................................................ 141Meeting, July 16, ’27 (with Piedmont S ec tio n )........................................... 156

The Dyeing and Finishing of Celanese (K ing). Paper....................... 156L^ses of Hydrosulphite in the Textile Industry (T hom pson).............. 158The Manufacture of Sulphur Dyestuffs (C r ist) ................................... 162

Meeting, Oct. 1, ’2 7 ................................................................................................. 201Introduction to a Discussion on the Testing of Sulphur Colors

(Bamberger). Paper ...................................................................................... 202Chasing Troubles in the Dyehouse (W hite). P aper.............................. 204

Sulphur Colors: Introduction to a Discussion on the T esting of (Bam ­berger). Paper ........................................................................................................ 202

Sulphur Dyestuffs: The M anufacture of (C rist). Paper.............................. 162U ses of Hydrosulphite in the T extile Industry (Thompson). P a p e r . . . . 158Vat Color Dyeing. D iscussion................................................................................... 244W ays and Means of Bringing Textile Manufacturers to a Fuller Appre­

ciation of the V’alue of Technically Trained Personnel........................... 246Vat Colors in America: The Development of (S tott). Paper.................. 12W etting-Out Materials: A Proposed New Method for Testing the

(D avies). Paper ................................................................................................... 191W hat Constitutes an Adequate Education for a T extile Chemist and

Colorist? (Olney and Rose). D iscussion .......................................................... 237W ool Scouring (H all). P a p e r . . . . ............................................... ........................... 226Yarns: Physical Tests to Determine the Effect of Chemical or Other

Treatment on (Goldthwait). Paper............................................................... 1

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