NEw SERIES SUBSCRIPTION, $6.00VOL. 98, No. 2533 FRIDAY, JULY 16, 1943 SINGLE COPIES, .15

Models by Courtesy of Newton W. Buerger

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AN AMERICAN SCIENTIFIC INSTITUTION PRODUCING OPTICAL GLASS AND INSTRUMENTSFOR MILITARY USE, EDUCATION, RESEARCH, INDUSTRY AND EYESIGHT CORRECTION

Science: published weekly by The Science Press, Lancaster, Pa.Entered as second-class matter July 18, 1923, at the Post Office at Lancaster, Pa., uinder the Act of March 3, 1879.

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Correspondence InvitedLANCASTER. PENNSYLVANIA

BIOGRAPHICAL DIRECTORYOF AMERICAN SCHOLARS

Edited by JAQUES CATTELL

The American Council of Learned Societies is

the sponsor of the Biographical Directory of Ameri-

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BIOGRAPHICAL DIRECTORYOF AMERICAN MEN

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and JAQUES CATTELL

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sketches and extends to 1608 pages. It is an in-

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OPPORTUNITIESWANTED-(a) Anatomist qualified for positionof professor of anatomy; biochemist for positionof assistant professor; and, also assistant professorof bacteriology; university medical school; East.(b) Chief technician; large clinical laboratory;university medical school; should be especially wellqualified chemistry, serology; South; $250. (c)Two chemists; research appointments; universitymedical school; duties consist of assaying variousbody tissues, fluids and excretions for hormonesand conducting chemical tests associated withnitrogen and mineral balance studies; immediately.#S6-4, Medical Bureau, Burneice Larson, Director,Palmolive Building, Chicago.

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4 SCIENCE-ADVERTISEMENTS VOL. 98, No. 2533

SCIENCE-ADVERTISEMENTS 5

Model PlanesWe announce a new plastic model set of 78 authentic types of airplanes as used by the United States Army Air Force for identi-fication at all of its training centers. They are the exact dupli-cates of actual planes all made to the scale of one inch to 6 feet.For instance, the Flying Fortress-B17-has a wing span of 171/2inches. The set includes: 13 United States Planes-21 British-20 German-8 Japanese-12 Italian-and 4 Russian.

Among the models are the Flying Fortress, Airacobra, Liberator,Hurricane, Blenheim, Zeros, Fiat, Messerschmitt, and all the lat-est planes you read about in the current news.

The importance of identifying planes is being included in thepreflight program of our educational institutions as rapidly aspossible. In the early part of the war a very high percentage ofBritish planes were shot down by their own gunners due to thefailure of recognizing their own planes.

Not only is this set valuable from the standpoint of quick identi-fication of enemy aircraft for civilian, coastal and other defenses,but it offers great possibilities in photography forsimulating individual enemy planes or formations Catalog

No.in flight against natural scenery, for demonstrating 75446the fields of fire of enemy aircrafts, and fortraining our fighting men to discern in splitseconds whether approaching aircraft is OFFEREDfriend or foe. The set can also be used in AT A NEXthe school art department or in the wood LOW PRICIworking shop as standard for constructingstudent models. o -I

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IN SlUBMARINE-infested waters, a speeding de-stroyer must be able to change its course in a

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through this research, the "creep" insome turbine metals has been reduced to1/1,000th of an inch per inch per yearless than 1/64th inch per inch in 100 years.

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1

VOL. 98, No. 2533

SCIENCEFRIDAY, JULY 16, 1943

The Advancement of Science in China during thePast Thirty Years: CHUNGSHEE H. Liu .. 47

Obituary:Dr Leonhard Stejneger: PAUL BARTSCH. Deaths

and ...............................

Scientific Events:The Birthrate of Great Britain; The Botanic Gar-den of the University of Cambridge; Recommenda-tions for the Care of the Medically Indigent; Newand Bare Instruments; The Virginia Academy ofScience Research Endowment .................. ... ...

51

Special Articles:Demonstrating the Presence of Sulfonamides in theTissues: COMMt. MARION B. SULZBERGER, M.0.,U.S.N.R. and OTHERS. Ether and Metabolism inthe Cerebral Cortex: DR. FRANCIS N. CRAIG .. 66

Scientific Apparatus and Laboratory Methods:

Large-scale Production of Penicillin: PROFESSORC. E. .......................................

55Science News

Scientific Notes and News .. 57

Discussion:Continental Drift and Ancient Dunes: JOHN R.PETERS. Some Paleontological Inferences as tothe Life-habits of the Australopithecines: PRO-FESSOR LOREN C. EISELEY. "Dormant" Versus"Adventitious" Buds: EARL L. STONE, JR. andMARGARET H. STONE. Acidity and Activity ofSulfonamides: DR. I. M. KLOTZ. Correction: DR.MICHAEL HEIDELBERGEER and CATHERINE F. C. MAC-

PHERSON ........ .................

Scientific Books:Physiological Chemistry: PROFESSOR HENRY BOR-SOOK. Modern Physics: PROFESSOR LEIGH PAGE

SCIENCE: A Weekly Journal devoted to the Advance-ment of Science, edited by J. McKEEN CATTELL and pub-lished every Friday by

THE SCIENCE PRESSLancaster, Pennsylvania

60Annual Subscription, $6.00 Single Copies, 15 Cts.

SCIENCE Is the official organ of the American Associa-tion for the Advancement of Science. Information regard-ing membership in the Association may be secured fromthe office of the permanent secretary in the Smithsonian

63 Institution Building, Washington, D. C.

THE ADVANCEMENT OF SCIENCE IN CHINA DURINGTHE PAST THIRTY YEARS

By CHUNGSHEE H. LIUEDITOR, THE K 'o Hsiteh (Science), THE SCIENCE SOCIETY OF CHINA, SHANGHAI

I

EVER since the establishment of the Republic ofChina on October 10, 1911, the development of sciencein this country has entered a new era of activities inits own history. Unlike the early Ming and the lateCh'ing dynasties,' when science was superficially in-

troduced into China, this time we have fostered mod-ern-science from quite a different point of view andon a solid foundation. Characteristic features are

easily to be noted. Firstly, scientific researches alongvarious branches of science were duly initiated. Origi-nal work undertaken at institutes, laboratories anduniversities made valuable contributions to modernscience either of universal nature or of local character.

1 Chungshee H. Liu, The China Journal, 34: 3, 120-125; 5, 210-219, 1941.

Secondly, since the beginning of this new period, the

work of developing science has been entirely entrustedto the Chinese themselves, although a few foreign in-

stitutions inherited from the last century were still

to be seen in the country, but were not very active.

Thirdly, a large number of Chinese scientists, bothtrained abroad and at home, have served the countryin various capacities-in government departmentsand private institutions. Fourthly, scientific educa-

tion has received ever so much attention and consider-able progress has been observed. Scientific courses

were not only taught in schools, colleges and univer-

sities, but also gained an important position in their

respective curricula. Fifthly, the application of

science in various walks of life shows another phaseof scientific activities from daily life to national de-

VOL. 98 No. 2533

69

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