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Science, New Series, Vol. 125, No. 3253, May 3, 1957


Previous Issue: New Series, Vol. 125, No. 3252, Apr. 26, 1957
Next Issue: New Series, Vol. 125, No. 3254, May 10, 1957


Front Matter (4 pp.)
Euratom, p. 869
B. P.

Instrumentation for Bioengineering, pp. 871-874
Wallace E. Frank

Biological Clock in the Unicorn, pp. 874-876
LaMont C. Cole


News of Science
German Physicists Protest Nuclear Weapons, p. 876
Raise for Britain's Physicians, p. 877
Accreditation of Mouse Producers, p. 877
T. C. Byerly; T. Aarons; R. H. Barnes; N. R. Brewer; L. R. Christensen; C. N. W. Cumming; C. L. Davis; R. J. Flynn; G. E. Jay Jr.; C. A. Slanetz; J. E. Williams
Radio Pill for Studying Gastrointestinal Physiology, pp. 877-878
NSF Science Faculty and Senior Postdoctoral Awards, p. 878
Grace Nuclear Fuel Plant, p. 878
Cullen Engineering College at Houston, p. 878
Soviet Scientists Cancel U.S. Visit, p. 878
Kelco Research Laboratory, p. 878
National Bureau of Standards, 1956, pp. 878-879
May Scientific Monthly, p. 879
Scientists in the News, pp. 879-880
Recent Deaths, p. 880


Reports
Probable Role of Gamma Irradiation in Origin of Life, p. 881
Raymond Paschke; Robert W. H. Chang; Donald Young
Variation in Normal Sodium, Potassium, and Calcium Levels in Wistar Albino Rats, pp. 881-883
Adam Anthony; John Parsons
Preparation of Growth Hormone from Pituitaries of Man and Monkey, pp. 883-884
M. S. Raben
Metabolic Effects of Human and Monkey Growth Hormone in Man, pp. 884-885
J. C. Beck; E. E. McGarry; I. Dyrenfurth; E. H. Venning
Behavior, Sexual Dichromatism, and Species of Parrot Fishes, pp. 885-886
Howard E. Winn; John E. Bardach
Synthesis and Pharmacology of the Octapeptide Angiotonin, pp. 886-887
F. Merlin Bumpus; Hans Schwarz; Irvine H. Page
Conversion of Diiodophenols to Side-Chain Analogs of Thyroxin, pp. 887-888
Earl Frieden; Harry M. Walborsky; Jean Eagle McRae
Discrimination Training Effect on Stimulus Generalization Gradient for Spectrum Stimuli, pp. 888-889
Harley M. Hanson


Book Reviews
----------------, p. 890
Prehistoric Settlement Patterns in the New World. Viking Fund Publications in Anthropology, No. 23
Gordon R. Willey
Review author[s]: Frank H. H. Roberts Jr.
----------------, pp. 890-891
Die Gattungen der Rhodophyceen
Harald Kylin
Review author[s]: Wm. Randolph Taylor
----------------, p. 891
Physics and Chemistry of the Earth. vol. 1
L. H. Ahrens; Kalervo Rankama; S. K. Runcorn
Review author[s]: William R. Thurston
----------------, pp. 891-892
Chemistry of Chromium and Its Compounds. vol. 1 of Chromium
Marvin J. Udy
Review author[s]: J. T. Sterling


Meetings and Societies, pp. 893-894+896


Letters
Political Means, p. 896
Philip Siekevitz
Feedback, pp. 896+899
Norman Rabbiner; Fred L. Whipple
Scientists on Politicians, and the Obverse, pp. 899-900
Gordon Gunter
Causes and Effects, pp. 900-901
Anthony Standen
Science, a Worth-While Endeavor, p. 901
Jay A. Young


Back Matter (12 pp.)

Previous Issue: New Series, Vol. 125, No. 3252, Apr. 26, 1957
Next Issue: New Series, Vol. 125, No. 3254, May 10, 1957



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