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VOL.91, No. 2361
FRD Y, AC 29,14 SINGLE COPIES, .15
Proved in the Classroom
Mo~~esters Nutrition *nid DietluNeW (3rd) MIceester "s book is a co'p'rlehensive andcol lditionof trtio adrdetinboth health andl
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2 CEC-DETSMNT O.9,N.26
Two Extensively Adopted TextbooksBy H. V. Neal, Ph.D., Tufts College, and H. W. Rand, Ph.D., Harvard University
COMPARATIVEANATOMY
Adopted by 244 Colleges and Universities(Published 1936)
540 Illus. 739 Pages. $4.75
This book is an exceptionally usable and skillfullyprepared text covering the conventional subjectmatter of vertebrate morphology.A chapter is devoted to each anatomical system andthere are brief discussions of the animal kingdom,histology, reproduction, and vertebrate phylogeny.The facts presented throw light on man's place innature and help the student to understand themajor functions of his body.A glossary and excellent illustrations are provided.
CHORDATEANATOMY
Already Adopted by 108 Colleges andUniversities
(Published 1939)378 Illus. 467 Pages. $3.50
Designed to meet the need for a one-semester coursein comparative anatomy, this text introduces thestudent to a sound study of chordate morphology.Embryological, histological and physiological ma-terial enhances the student's understanding of themain subject. Heading each chapter are introduc-tory comments which lay the groundwork for andpoint to the significance of subsequent material.Throughout the text, stages of development andstructures in the lower forms which have analoguesand homologues in man are indicated.
THE BLAKISTON COMPANY, Philadelphia
The Electrocardiogramin Congenital Cardiac
DiseaseBY MAURICE A. SCHNITKER, M.D.
ALTHOUGH THERE ARE several other treatiseson the electrocardiogram, Dr. Schnitker's
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xi - 147 pages. 24 illustrations. $3.00
HARVARD UNIVERSITY PRESSCAMBRIDGE, MASSACHUSETTS
DENTAL SCIENCEAND DENTAL ART
With Contributions by Eminent AuthoritiesEDITED BY SAMUEL M. GORDON, PH.D.
Secretary of the Council on Dental Therapeutics,American Dental Association, 1928-1937
Octavo, 731 pages, illustrated with 224 engravings.Cloth, $9.50, net.
This book presents the scientific basis forinvestigation and practice in dentistry. Bydrawing on the allied sciences, the practiceof dentistry is placed on a scientific founda-tion. The whys and wherefores of manyaccepted practices are rationalized frombroad biologic and scientific viewpoints.The book can be studied with profit by stu-dent, practitioner and all scientists directlyor indirectly interested in dentistry. It isthe purpose of this book to advance a morescientific point of view.
LEA & FEBIGERPHILADELPHIA, PA.WASHINGTON SQUARE
2 SCIENCE-ADVERTISEM~ENTS VOL. 91, No. 2361
MARCH 29, 1940SCIENCE-ADVERTISEMENTS 3
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Forty-seven members of RCA among572 industrial engineers and scientists
given awards as "Modern Pioneers on
American Frontiers of Industry."
SINCE its beginning, the Radio Corporation ofAmerica has held that Research in all fields
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A/14 SCIENCE-ADVvERTISEMENTS VOL. 91, No. 2361
MAC.9 90SINEAVRIEET
A
Ofthe 572 industrial engineers and scientists chosenby the National Association of Manufacturers toreceive awards as "Modern Pioneers on AmericanFrontiers of Industry," forty-seven were members ofthe RCA organization. The awards were given fororiginal research and inventions which have "con-tributed most to .the creation of new jobs, new
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Special national awards were given by the NationalAssociation of Manufacturers to nineteen of thosereceiving honors. Dr. Vladimir K. Zworykin of theRCA Manufacturing Company was chosen to receiveone of these national awards.
47 RCA "Modern Pioneers on American Frontiers of Industry"Randall Clarence BallardMax Carter BatselAlda Vernon BedfordGeorge Lisle BeersHarold H. BeverageRene Albert Braden
George Harold BrownIrving F. ByrnesWendell LaVerne CarlsonPhilip S. CarterLewis Mason ClementMurray G. Crosby
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6 SCIENCE-ABDVERTISEMENTST VOL. 91, No. 2361
MARCH 29, 1940 SCIENCE-ADVERTISEMENTS 7
In a paper emanating from the Merck Research Laboratoriesand published in the April 14, 1939 issue of Science, Harrisand Folkers announced their success in accomplishing thetotal synthesis of vitamin B6.
This achievement followed in rapid succession the success-ful isolation of vitamin B6 by Keresztesy and Stevens of theMerck Research Laboratories and the subsequent determi-nation of its structure by Stiller, Keresztesy and Stevens ofthe same laboratories.
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.VOL. 91 X0. 2361ySCIENCE---ADVEBTISEMENTS8
SCIENCEVOL. 91 FRIDAY, MARCH 29, 1940 No. 2361
Episodes and Personalities in the Development of Special Articles:Biology at Brown: DR. A. D. MEAD .................................... 301 Mobilization of Vitamin A from Its Stores in the
Functions of the Preclinical Sciences in Medical Edu- Tissues by Ethyl Alcohol: DR. SAMUEL W. CLAU-cation: DR. MAGNUS INGSTRUP GREGERSEN .................. 305 SEN and OTHERS. The Isolation of Phytin from
Soil: W. J. DYER, DR. C. L. WRENSHALL and DR.Scientific Events: G. R. SMITH. On the Nature of the Leukocytosis-New Fellows of the Royal Society of Edinburgh; promoting Factor of Inflammatory Exudates: DR.The Detroit Center of the University of Michigan; VALY MENKIN .318Paleontological Expedition of the National Geo-graphic Society and the South Dakota State School Scientific Apparatus and Laboratory Methods:of Mines; The Institute of Food Technologists; .Rece nt ths.3n0 A New Technic for Staimnng Vaginal Smears: DR.ecentDeat s ................................................................................................ 308EPHRAIM SHORR A ubberCastof the DogfishEPHRAIM SHORR. A Rubber Cast of the Dogfish
Scientific Notes andNews ................................... Spiral Valve:PROFESSORK.D.ROEDER .............................. 321
Discussion:Varieties of Triticum vulgare Practically ImmuneScience ews ...................................................................................................... 10Varieties of Triticum vulgare Practically Immune Science News10
to Stem Bust: DR. R. F. PETERSON, DR. T. JOHN-SON and DR. MARGARET NEWTON. Fresh-waterJellyfish in Hawaii: PROFESSOR C. H. EDMONDSON. SCIENCE: A Weekly Journal devoted to the Advance-Reappearance of an Ancient Absurdity Regarding ment of Science, edited by J. MCKEEN CATTELL and pub-Magnets: PROFESSOR L. W. MCKEEHAN; WATSON lished every Friday byDAVIS. Roger Bacon Was Mistaken: DR. JOSEPH
O. ....................................................................................New York City: Grand Central TerminalScientific Books:
Political Geography: PROFESSOR PRESTON E. Lancaster, Pa. Garrison, N. Y.JAMES. Naturalists in South America: DR. AL- Annual Subscription, $6.00 Single Copies, 15 Cts.
BERT .EESE .......................................................................................... SCIENCE is the official organ of the American Associa-Reports: tion for the Advancement of Science. Information regard-
The New International CommissionoS^f <?»iMSnow and ing membership in the Association may be secured fromThe New International Commission of Snow and, the office of the permanent secretary in the SmithsonianGlaciers: FRANCOIS E. MATTHES ................................................ 317 Institution Building, Washington, D. C.
EPISODES AND PERSONALITIES IN THE DEVELOPMENTOF BIOLOGY AT BROWN1
By Dr. A. D. MEADBROWN UNIVERSITY
IN the diamond jubilee number of the AtlanticMonthly, issued in November, 1932, seventeen articlesselected from the 900 monthly issues of the Atlanticwere reprinted. One of them was Dallas Lore Sharp'sfamous paper on "Turtle Eggs for Agassiz" (1910),which already had been reprinted many times andwhich, incidentally, has been read by Dr. Walter tohis class in comparative anatomy in Brown every yearfor a quarter of a century. Now this touches mysubject at several points: The hero of the episode wasJ. W. P. Jenks, the first teacher of zoology at Brown.Jenks was a lifelong disciple of Agassiz and widelydisseminated his doctrines at Brown and elsewhere.Sharp was a student at Brown (1895) and a special1Address at the dinner of the National Academy of
Sciences, Brown University, October 24, 1939.
protege of Professor Jenks, from whom, while atBrown, he got the tale about the turtle eggs. Again,Sharp's own colorful career at Brown, if as ade-quately written up, would win a place in literature.And finally, his introduction to the turtle egg paperprovides the theme, which is at least implied, of thispost-prandial talk, namely, that the progress of ascience in a period of years, like a game of golf in an
afternoon, is not completely recorded in the mereenumeration of the end results and the scores, butthat personalities and minor dramatic incidents are avital and substantial part of the story.Sharp found the clue to his story in Agassiz's four
volumes of "Contributions to the Natural History ofthe United States." "The volumes," he said, were
"massive, heavy, weathered as if dug from the rocks,"