miscellaneous systems and techniques; and industrial application of solvent extraction.

Atlas of Electron Spin Resonance Spectra. B. H. J. Bielski, J. M. Gebicki. xiii + 665 pages. Aca­demic Press, Inc., Ill Fifth Ave., New York, Ν. Υ. 10003. 1967. $27.

This volume contains a selection of electron spin resonance spectra likely to be of greatest general interest to ex­perimental spectroscopists. Where pos­sible, the authors have included with each picture a short description of the experimental conditions employed in recording the spectra. The original publication is listed unless the spectrum was not published and this is indicated where applicable. The book contains the tables of data and author and chem­ical indexes.

Supplement to Official Standardised and Recommended Methods of Analysis. S. C. Jolly, Editor, xiv + JfZJj. pages. Society for Analytical Chemistry, 9/10 Savile Row, Lon­don, W. 1, England. 1967. $21; $18, members.

This book "is a Supplement to the volume issued in 1963 under the title, "Official, Standardised and Recom­mended Methods of Analysis." I t con­tains the more recently standardized methods of analysis, Part I, published by the Analytical Methods Committee of the Society for Analytical Chemistry, a rewritten and reset version of the bibliography which lists references to methods for a wide variety of materials, Part II , and an index to the main vol­ume and the Supplement.

Textile Laboratory Manual. Vol. 5: Fibres. W. Garner. 265 pages. American Elsevier Publishing Co., 52 Vanderbilt Ave., New York, Ν. Υ. 10017. 1967. $9. This volume, like its predecessors, is

designed to be used in conjunction with Volume 1, which gives details of test methods indicated by reference num­bers throughout the book. The book treats "each of the important textile fibres in turn, describing the methods used for their identification and giving their physical, optical, and staining characteristics. Tests for identification of various fibre treatment processes are also given. Analysis of fibre mixtures is covered, including a new qualitative method devised by the author, and most of the published quantitative pro­cedures.

Gas Chromatography Data Compila­tion. DS So A. 7/fO pages. Ameri­can Society for Testing and Materi­als, 1916 Race St., Philadelphia, Pa. 1910S. $40; for AST M members, 80% less.

This book contains up to 60% of the published data, abstracted through 1965. The contents, in tabular form, has double the volume of data con­tained in the original publication STP 343. In addition to retention data; the retention index and capacity ratio are included.

U. S. Government Publications Radioassay Procedures for Environ­

mental Samples. Publication No. 999-RH-27. 1967. Single free copies may be obtained from Public Inqui­ries Branch, Public Health Service, U. S. Dept. of Health, Education, and Welfare, Washington, D. C. 20201.

This is a manual of methods used in laboratories of the Public Health Service's National Center for Radio­logical Health of the Bureau of Disease Prevention and Environmental Control for the determination of interpretation of the radionuclide content of samples collected for environmental surveillance. Major section headings are Instrumen­tation, Quality Control, Milk, Food, Water, Air, and Other Environmental Samples. Appendixes give a glossary of terms and reagent preparation in­structions. Bibliographic references are included for spécifie procedures as well as for more general discussions.

Radionuclide Standardization. A Bibliography. G. I. Coats, vii + 31 pages. Publication No. 999-RH-25. 1967. Single free copies may be obtained from Public Inquiries Branch, Public Health Service, U. S. Dept. of Health, Education, and Wel­fare, Washington, D. C. 20201.

The bibliography contains references on absolute counting (23) ; coincidence technique, formula and corrections (41) ; calibration by beta and 4 pi beta methods (89), beta-gamma coincidence (32), gamma-gamma coincidence and gamma counting (27), x-ray-gamma coincidence (17), alpha-gamma coin­cidence (7), liquid scintillation count­ers (14), ion chambers and calorimeters (9), coincidence circuits (48); dead time and statistics (32) ; thin films (21); sample preparations, back scat­tering, and self-absorption (30) ; main­tenance and storage of standards (9) ; intercomparison of solutions (7) ; and general references (12).

Innovations for chemists: MS/GC

The MS/GC Interface Acces­sory lets you combine mass spectrometry and gas chroma­tography for a more f lexible, powerful analytical tool. It offers 1000-times greater sample en­richment than previous inter­faces, enabling you to choose independent and optimum oper­ating conditions for MS and GC —-heretofore impossible with any system. This is another ex­ample of innovations in NMR, EPR, Mass Spectrometry, and Laboratory Magnets to help the chemist do a better job more easily. For information, contact your local Varian representative.

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