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DECEMBER 30, 1949

GOVERNMENT SUPPORTOF RESEARCH

ALAN T. WATERMAN

TECHNICAL PAPERS

COMMENTS AND COMMUNICATIONS

NEWS AND NOTES

INDEX TO VOLUME 110

COMPLETE TABLE OF CONTENTSVOLUME 110, NUMBER 2870

ON PAGE 3

E.U u iinEcniIEni Imm

THEADVANCEMENT OF SCIENCE

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AMERICAN ASSOCIATION FOR

I

Calibrating reference junction cosls in a constant temperature oil bath istypical of the uses for the compact Type E Galvanometer in our ownplant. This routine measurement formerly required a wall-type galva-nometer with separate lamp and scale.

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December 30,1949,Vol. 110SCIENCE 1~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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SCIENCE December 30, 1949, Vol. 110

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EXPERIMENTAL PHYSICAL CHEMISTRYBy FARRINGTON DANIELS, J. HOWARD MATHEWS and JOHN WARREN WILLIAMS, University of Wisconsin. In-ternational Chemical Series. Fourth edition. 566 pages, $4.50

Here is a thorough revision of a well known, widely used work. As in the earlier editions, the authors illustratethe principles of physical chemistry, train the student in careful experimentation, develop familiarity with appa-ratus, give the student confidence in using physical measurements, and encourage ability in research.

THE TRANSURANIUM ELEMENTS. Research PapersNational Nuclear Energy Series. Plutonium Project Record. Division IV. Volume 14BEdited by GLENN T. SEABORG, University of California. JOSEPH J. KATZ and WINSTON M. MANNING, ArgonneNational Laboratory. 1778 pages, two parts (not sold separately), $15.00

This work consists of more than 150 original papers dealing with the transuranium elements and cognate topics.The papers are devoted to the four known transuranium elements: neptunium, plutonium, americium, and curium.There are several papers concerning radium, actinium, thorium, protactinium, and uranium, which are included forreference convenience.

INDUSTRIAL MICROBIOLOGYBy SAMUEL C. PRESCOTT and CECIL G. DUNN, Massachusetts Institute of Technology. Second Edition. 923pages, $8.50

This new edition of Prescott and Dunn's highly succes3ful book supplements previous material with the latestdevelopments in industrial microbiology. The text has been completely revised to consolidate former data andinclude the most recent information on production statistics, fermentation products, etc.

ORGANIC CHEMISTRYBy G. BRYANT BACHMAN, Purdue University. International Chemical Series. 432 pages, $4.25

Designed for a year 's course of medium intensity, or for a rather concentrated semester course, this text is par-ticularly well adapted for non-chemistry majors. Features: careful organization and correlation of material tosimplify the learning process; early introduction to the systematic naming of organic compounds; a carefullysifted group of theoretical concepts; emphasis on the organic chemistry of related fields of knowledge; and stimu-lating exercises and problems.

MODERN INTRODUCTORY PHYSICSBy IRA M. FREEMAN, Rutgers University. 490 pages, $4.50

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2 SCIENCE December 30, 1949, Vol. 110

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SCI George A. BaXVol. 110 No. 2870 Friday, December 30, 1949 Lorin J. Mullir

F. A. Mc

Table of Contents

Government Support of Research:AlanT.Waterman ......... ............................. 701

Technical PapersFluorometric Determination of SerumAureomycin Levels:John C. Seed and Catherine E. Wilson ............ 707

Preparation of C14 Uniformly LabeledFructose by Means of Photosynthesis andPaper Chromatography:Sidney Udenfriend and Martin Gibbs ............ 708

A Megalonyx Tooth from the NorthwestTerritories, Canada: Chester Stock

andHorace G. Richards ................... ................... 709Infrared Spectrometry of Small Samples with

the Reflecting Microscope: R. C. Gore ............ 710A Method for the Study of Blood Loss inHookworm Infestation: P. F. Hahn and

Edward P.Offutt 711

Prevention of Dietary Fatty Livers byExposure to a Cold Environment:E. A. Sellers and Rosemary Wen You ............ 713

Films from Hemicellulose Acetates:Charles L. Smart and Roy L. Whistler ............ 713

A Possible Explanation of SymptomFormation in Tobacco with Frenchingand Mineral Deficiencies:Robert A. Steinberg, John D. Bowling,

and James E.McMurtrey, Jr . 714

Annual Variation in Nicotine Content ofTobacco:Earl W. Flosdorf and Arthur W. Palmer ...... 715

Simplified Preparative Electrophoresis atRoom Temperature: Harold A. Abramson ...... 716

Comments and CommunicationsNatural Vegetation in the Willamette Valley;

Thermal Coefficient of the Refractive IndexofWater ..................................... 717

News and Notes .8. 78

Index to Volume 110 .:m............... ........ ........m

Science, a weekly journal founded in 1880, is publishedeach Friday by the American Association for the Advance-ment of Science at the Business Press, 10 McGovern Ave.,Lancaster, Pa. Editorial and Advertising Offices, 1515 Massa-chusetts Ave., N.W., Washington 5, D. C. Telephone, Execu-tive 6060. Cable address, SCIMAG, Washington, D. C.Entered as second-class matter at the Post Office at Lancaster,Pa., January 13, 1948, under the Act of March 3, 1879.Acceptance for mailing at the special rate postage providedfor in the Act of February 28, 1925, embodied in Paragraph4, Sec. 538, P.L. and R., authorized January 13, 1948.

Manuscripts submitted for publication should be sent to theEditorial Office, with stamped, self-addressed envelope en-closed for possible return. The AAAS assumes no responsi-bility for the safety of the manuscripts or for the opinionsexpressed by contributors.Annual subscription, $7.50; single copies, $.25; foreign

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postage, $.50. Remittances and orders for subscriptions andsingle copies should be sent to the Circulation Department,Science, 1515 Massachusetts Ave., N.W., Washington 5, D. C.Membership correspondence for the AAAS should be addressedto the Administrative Secretary of the same address.Change of address. Four weeks' notice is required for

change of address. This should be sent to Science Recorder,1515 Massachusetts Ave., N.W., Washington 5, D. C. Whenordering a change, it is necessary to furnish an address stencillabel from a recent issue. Claims for a missing number willnot be allowed if received more than 60 days from date ofissue. No claims allowed from subscribers due to failure tonotify the Circulation Department of a change of address orbecause an issue is missing from their files, or for any reasonfrom subscribers in Central Europe, Asia, or. the PacificIslands (other than Hawaii).The AAAS also publishes The Scientiflc Monthly. Subscrip-

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4 SCIENCE December 30, 1949, Vol. 110

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SCIENCE December 30, 1949, Vol. 110

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SCIENCE December 30, 1949, VOL 1 106