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Science, New Series, Vol. 126, No. 3274, Sep. 27, 1957


Previous Issue: New Series, Vol. 126, No. 3273, Sep. 20, 1957
Next Issue: New Series, Vol. 126, No. 3275, Oct. 4, 1957


Front Matter (5 pp.)
Shifting the Burden, p. 597
G. DuS

Ethological Concepts, pp. 599-603
R. F. Ewer

W. C. Mendenhall, Geologist, pp. 603-604
D. F. Hewett

R. S. Lull, Vertebrate Paleontologist, pp. 604-605
Joseph T. Gregory


News of Science
Trough in Ocean Bottom, p. 605
Revised Curriculum at Harvard, p. 605
Idaho Reactor, p. 605
USDA Research Facilities for Conservation, p. 605
Associate Editor Resigns, p. 606
G. DuS
October Scientific Monthly, p. 606
News Briefs, p. 606
Scientists in the News, p. 606
Recent Deaths, p. 606


Reports
Paper Chromatography of Unstable Substances, pp. 607-608
Käthe Schwarz; A. A. Bitancourt
Effect of Cyanide on Biosynthesis of Ascorbic Acid in vitro, pp. 608-609
I. B. Chatterjee; N. C. Ghosh; J. J. Ghosh; B. C. Guha
Composition of the Placental Septa as Shown by Nuclear Sexing, pp. 609-610
Aryeh Sadovsky; David M. Serr; Gertrude Kohn
Stimulant Effect of 2-Dimethylaminoethanol--Possible Precursor of Brain Acetylcholine, pp. 610-611
Carl C. Pfeiffer; Elizabeth H. Jenney; William Gallagher; Richard P. Smith; William Bevan Jr.; Keith F. Killam; Eva King Killam; William Blackmore
Evidence that Glutamine Is a Precursor of Asparagine in a Human Cell in Tissue Culture, pp. 611-612
Leon Levintow
Acquisition of Resistance to Osteolathyrism during Adaptation to Cold, p. 612
Hans Selye
Thorium Content of Stone Meteorites, pp. 612-614
Effects of Gamma Radiation on Collembola Population Growth, p. 614
S. I. Auerbach; D. A. Crossley Jr.; Manfred D. Engelman


Book Reviews
----------------, p. 615
Bioenergetics
Albert Szent-Györgyi
Review author[s]: Barry Commoner
----------------, pp. 615-616
Educating Gifted Children
Robert F. DeHaan; Robert J. Havighurst
Review author[s]: S. L. Pressey
----------------, p. 616
Plant Virus Serology
R. E. F. Matthews
Review author[s]: William C. Boyd
----------------, p. 616
Development of Vertebrates
Emil Witschi
Review author[s]: D. P. Costello
----------------, pp. 616-617
The Genus Achlya: Morphology and Taxonomy. University of Michigan Studies, Scientific Series. vol. XX
Terry W. Johnson Jr.
Review author[s]: John R. Raper


Meetings and Societies, pp. 618-620+622
Back Matter (6 pp.)

Previous Issue: New Series, Vol. 126, No. 3273, Sep. 20, 1957
Next Issue: New Series, Vol. 126, No. 3275, Oct. 4, 1957



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