SCHOOL SCIENCE AND MATHEMATICS

A MATHEMATICAL CROSS WORD PUZZLE.BY PROFESSOR H. C. COSARD, UNIVERSITY OF WYOMING.

HORIZONTAL.A’simple mathematical result.That which a "variable constantly approaches, but can never go be-yond.

That which works math students.Abbreviation for a branch of the civil service.Any assumed function.To yield or soften.^A large number.A unit of angular measurement.What instructors think our heads are made of.Abbreviation for niton.A close figure of plane geometry (plural).We will have refreshments ���.�...-..-.����

(Abbr.) No. big stick.

Norton’s Star Atlas and Telescopic Handbook�BSDCOMPLETE MAPS OF THE CELESTIAL SPHERE

This Atlas, by Arthur P. Norton, A. B., is most excellent for collegework in Astronomy, as well as for the use of all who study that subject.

An Encyclopaedic Summary of important subjects related to astron-omical study fills the first thirty odd pages of the book. For quick, readyreference this part of the book will be found invaluable, as the materialtreated is very clearly and concisely stated, and easily found.

The Maps are based on Webb^s "Celestial Objects for Common Tele-scopes" and Smythe^s "Cycle of Celestial Objects," as well as on Hou-zeau^s "Uranometric Generale," and the catalogs of the Greenwich andCape Town Observatories. The Revised Harvard Photometry has alsobeen consulted.

Upwards of 6,500 Stars and 600 Nebulae are shown on the severalmaps, located correctly for the Epoch of 1920.

The Circumpolar Maps extend from 40° North and South respective-ly to the Poles, and the Equatorial Maps extend from 60° North to60° South, thus giving an Overlap of 20°, while the Equatorial Mapsthemselves, comprising six (6) double page maps, overlap 30 minutes ofR. A. on the right and left sides respectively.

The Important Telescopic Objects on each map are summarized onthe page preceding that map. They are classified under the headings:Double Stars, Variable Stars, Nebulae and Star Clusters. Not only isthe object, the constellation it is in, and the position given, but a briefsentence covers its salient characteristics.

Price: $3.75 per copy, postpaid, in the United States.

EASTERN SCIENCE SUPPLY COMPANYP. 0. Box 1414, Boston, Mass.

WIESEFURNITUREAppreciatedWhereverInstalled

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ment, Minneapolis, Minn., are

the rule, not the exception:

"It is a pleasure to state that our Bureau of Buildings, especially our EquipmentDivision, appreciates both the excellent quality of workmanship and materials evidentin the goods you have furnished us, and the high standard of services rendered indeliveries and installation,91

An extra measure of service . . . this is the Wiese rule.Ask for our new catalog No. 24

WIESE LABORATORY FURNITURE CO.For 28 years, makers of Standard and Built-to-order Educationaland Technical Furniture for Physics, Chemistry, Agriculture,Biology, Household Economics, and Manual Training.

FACTORY: MANITOWOC, WIS.Sales Offices in Principal Cities.

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SCHOOL SCIENCE AND MATHEMATICS

’Abbreviation for a state on the western coast.A proposition denoting presence or nearness in time or place.

VERTICAL.Nine is a �.�����"We’re marching to�����-�, beautiful, beautiful ������

Abbrevaton for latus rectum.Name of the origin in polar coordinates.A plane figure bounded by straight lines.To make new.Square root sign (abbr.)The world has not ������� yet.Not written.Two.is a .���� of four.T-A side of a triangle (i.e. T, and a word for a side of a triangle).Suffix used to form nouns of agency.A point of an eccentric orbit that is nearest to or farthest from thecenter of attraction.

A proposition setting forth something to be proved.What the Mathematical Club sponsors, (abbr.)Topographical engineers, (abbr.)Unit oi linear measurement.Fallacy or hallucination.Contraction of word meaning divisible by two.

. ^To come to an end or to discontinue (detailed).University boy scouts.

The SCHAARDouble beam, Agate bearing Trip Scale

Weighs to 210 grams without the use ofsmall weights

Sensitivity, 1-10 gram. Capacity, 5000 grams

No. 564 ....... $13.50

Small weights are unnecessary. The ridersnot being removable, cannot become lost.Special sets of weights can be furnished ifdesired, the smallest piece being 100 grams.

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