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fat Will get resultsFunctional Neuroanatomy74Illus. neuroanatomy of

;3 Pages view. Anatomy and physiology are integrated into one account. All described;0 (1942) structures are illustrated with original figures by the author. By W. J. S. Krieg,College of Medicine, New York University

Is Human Anatomyl10th Edition.55 Illus. a human35 Pages written by eminent teaching anatomists. This new edition has been thoroughly,00 (1942) revised and brought in line with current thought. Edited by J. Parsons Schaeffer,

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and RAND Chordate Anatomy78 Illus. The authors present in this volume material for a sound morphological course

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2 Pages This book provides the material for a basic course in histology. It is in-tended to strengthen the foundations for further study in physiology and pathol-

)0 (1938) ogy. Comprehensive directions for laboratory work are included. By A. E.Lambert, State Univ. of Iowa Medical School

,PRllUS. Textbook of Histology 5th Edition55 Illus.

10 Pages This widely adopted text presents a study of histology with emphasis on de-velopment and the resulting form. Function is discussed as it helps to explain

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Textbook of Comparative Histology37 Illus Dr. Cole's successful textbook presents a new approach to histology for the6 Pages undergraduate student. It includes a discussion of both vertebrates and inverte-WgS(1941brates. By E. C. Cole, Williams College

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THE BLAKISTON COMPANY, PhiladelphiaScience: published weekly by The Science Press, Lancaster, Pa.

Entered as second-class matter July 18, 1923, at the Post Office at Lancaster, Pa., under the Act of March 3, 1879.

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SCIENCE-ADVERTISEMENTS VOL. 96, No. 2489

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A SOURCE-BOOK OF BIOLOGICALNAMES AND TERMS. By Edmund C.Jaeger, Riverside Junior College, Riverside,California.

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291 etchings showing 2711 figuresALGAE: THE GRASS OF MANY WAT-ERS. By L. H. Tiffany, Professor of Botanyand Chairman, Department of Botany, NorthwesternUniversity.XIA, 164 pages 12 figures and 39 plates $3.50

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1VOL. 96 No. 248974 SCIENCE-ADVERTISEMENTS

SEPTEMBER 11, 1942 SCIENCE-ADVERTISEMENTS

USERS OF THE AUTOTECHNICONAkron City Hosp., Akron, 0.

Albany Med. Coll., Albany, N. Y.Army & Navy Gen. Hos., Hot Spr., Ark.Augustana Hos., Chicago, Ill.Ball Mem. Hosp., Muncie, Ind.Barnes Hospital, St. Louis, Mo.Baylor Univ., Dallas, Tex.Bayonne Gen. Hosp., Bayonne, N. J.Bellevue Hos., N. Y., N. Y.Bender Hygienic Lab., Albany, N. Y.Beth Israel Hos., Newark, N. J.Blodgett Mem. Hos., G. Rap., Mich.Bridgeport Hos., Bridgeport, Conn.B.W.I. Gov. Bac., King., Jam., B.W.I.Brooklyn Hos., Brooklyn, N. Y.Bryn Mawr Hos., Bryn Mawr, Pa.Camarillo St. Hos., Camarillo, Calif.Carlsburg Labor., Kobenhavn, Den.Cen. Disp. & Emer. Hos., Wash., D. C.Children's Hos., Boston, Mass.Children's Hos., Detroit, Mich.Christ Hos., Cincinnati, 0.

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Cornell University, Ithaca, N. Y.N. Y. St. Coll. of Vet. Med., Ith., N. Y.Cor. U. Med. Coll., N. Y. C.Dr. H. B. Davidson, Columbus, 0.

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of Lab., St. John, N. B., Can.New Eng. Deac. Hos., Boston, Mass.N. J. Sta. Hos., Marlboro, N. J.New Rochelle Hos., New Rochelle, N. Y.New York Hos., N. Y. C.New York Med. Coll., N. Y. C.N. Y. Polycl. Hos., N. Y. C.N. Y. Post Grad. Hos., N. Y. C.N. Y. Skin & Can. Hos., N. Y. C.Norwalk Gen. Hos., Norwalk, Conn.Norfolk General Hos., Norfolk, Va.

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Queen's Hos., Honolulu, T. H.Queen's U., Kingston, Can.Quincy City Hos., Quincy, Mass.

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Stamford Hos., Stamford, Conn.Stanford U., Palo Alto, Calif.St. Hos. U. S. Army, Ft. Bragg, N. C.Station Hos., Ft. Sam Houston, Tex.Sutter Hos., Sacramento, Calif.Syracuse Memo. Hos., Syracuse, N. Y.Syracuse U., Syracuse N. Y., House of

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5

SCIENCE-ADVERTISEMENTS

Dr. Victor Paschkis at the operating bench of the heat-flow computing "model" in ColumbiaUniversity's Dept. of Mechanical Engineering. The big recording machines are Micro-

max instruments, which give final temperatures in heat-flow measurements.

Micromax Records Results of Heat-flow AnalyzerTime and effort needed for heat-transfer com-

putations are reduced-usually much reduced-by an electrical computing circuit now in Colum-bia University's M. E. Department.

Developed by Dr. Victor Paschkis, the equip-ment consists of resistors and condensers, so ar-ranged that they can create a low-inductancecircuit.

In this- circuit, current behaves much as heatdoes in a furnace or building wall, or otherobject. As it flows, some of it remains to "fill"any condensers in its path, while the rest con-tinues; just as heat "fills" anything in its paththrough a solid conductor. The analogy is suchthat the designer can create a "model" of a con-

templated heat-transfer equipment simply bysubstituting electrical quantities for thermal ones.Thus, thermal conductivity is represented by elec-trical capacity; temperature, by voltage. Btu'sbecome coulombs, and Btu's per hour becomeamperes. And duration of heat flow, which maybe hours or days,- can be represented by minutesof current flow. Or, a process which occurs in

seconds or fractions, may be stretched, to facili-tate analyses.The net results of the circuit's operation are

shown by various instruments, perhaps the mostimportant of which are two Micromax Re-corders. These instruments record the voltageswhich correspond to temperature, just as similarinstruments record thermocouple voltages else-where.

Applications of the equipment include prob-lems in heating, quenching, and cooling of metals,glass, chemicals, cement, coal, etc.; design ofbuildings, vessels, refrigerators, and furnaces; ap-plications in the food industries, in prime-moverdesign, brakes and clutches, and elsewhere. Themethod is described in Vol. 64, No. 2, Trans.ASME; in May, 1941 Power and in July '42ASHVE Jrl.Jrl Ad EN-33-480(1)

UtAUJRI SN~LEEDS &NORTHRUP COM PrtANt,@@UTNONAV..APHIASE, PA.

VOL. 96, NO. 2489

SCIENCEVOL. 96 FRiDAY, SEPTEMBER 11, 1942 No. 2489

Edmund Beecher Wilson: PROFESSOR THOMAS HUNT Special Articles:MORGAN ...............239 The Inorganic Constitution of Bone: DR. STER-

Wind-worn Stones in Glacial Deposits of the Middle LING B. HENDRICKS and DR. WILLIAm L. HILL.West: DR. LINCOLN R. THIESMEYER ............................ 242 Occurrence of Avidin in the Oviduct and Secre-tions of the Genital Tract of Several Species: DR.

Obituary: Roy HERTZ and DR. W. H. SEBR.ELL. HereditaryWilliamrn Schau~s, 1858-1945: CARL HEINRICH and Transmission of Induced Tetraploidy and Compati-EDWARD A. CHAPIN. Recent Deaths ............................ 244 bilty Fertiliation D. A B. STOUT and CLD

CHANDLER......................................................255Scientific Events:The Zoological Society of London and the Natural Scientific Apparatus and Laboratory Methods:History Museum at South Kensington; The Im- The Students' Astrolabe: PRoFEssoRA. K. LOBECK 259portance of Research in the War Emergency; Re-

portoftheLibrarian of New York University; Science News ........................................... 8Mathematicians and the War; In Honor of HenryGranger Knight ......... ............................... 245

Scientific Notes and News ................. ....................... 248

Discussion: SCIENCE: A Weekly Journal devoted to the Advance-Anomalies of Color Vision: DR. KNIGHT DUNLAP ment of Science, edited by J. McKEEN CATTELL and pub-and Da. ROBERT D. LOKEN. The Use of Generic lished every Friday byNames as Common Nouns: PROFESSOR S. 0. MAST. THE SCIENCE PRESSTheories as to the Origin and Nature of Life:JEROME ALEXANDER .............. 251 Lancaster, Pennsylvania

Quotations: Annual Subscription, $6.00 Single Copies, 15 Cts.The Woods Hole Marine Biological Laboratory ...... 253 SCIENCE is the official organ of the American Associa-

tion for the Advancement of Science. Information regard-Scientific Books: ing membership in the Association may be secured from

the office of the permanent secretary in the SmithsonianMathematics: PROFESSOR RUDOLPH E. LANGER ....... 254 Institution Building, Washington, D. C.

EDMUND BEECHER WILSON1By Professor THOMAS HUNT MORGAN

CALIFORNIA INSTITUTE OF TECHNOLOGY

EDMUND BEECHER WILSON was born on October 19,1856, at Geneva, Illinois. The first sixteen years ofhis life were passed there.When Wilson was not quite sixteen his uncle Davis

suggested that he take over the "little country districtschool" that his brother Charles had taught the yearbefore. The offer was thirty dollars a month andboard (with his aunt and uncle). "When the ther-mometer stood at thirty degrees below zero, as it didat times, this was, I assure you, no joking matter.I wonder how the modern city-bred youth would likesuch an experience. I had only twenty-five pupils orso, of all ages from six to eighteen, and I had to teach

1 Condensed from a memoir presented to the NationalAcademy of Sciences.

all grades, from the three R's up to history andalgebra."In the following summer he was in Geneva, where

his cousin, Sam Clarke, had just returned fromAntioch College. "As the summer passed I had grad-ually made up my mind to try for a college educationand a life devoted to biology or at least to science.""I had nothing but my two hundred dollars' and withthis in hand I packed up my meager outfit in Sep-tember and started for Antioch College in SouthernOhio." The college was a very simple one but withsound ideals. "We had good teachers. Here, for thefirst time I received regular instruction in zoologyand botany, in Latin, in geometry and trigonometry