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Science, New Series, Vol. 118, No. 3056, Jul. 24, 1953


Previous Issue: New Series, Vol. 118, No. 3055, Jul. 17, 1953
Next Issue: New Series, Vol. 118, No. 3057, Jul. 31, 1953


Front Matter (1 p.)
Conference on Steroid Determination, p. 3
Gregory Pincus

Free Research Versus Design Research, pp. 91-93
Curt P. Richter

Inactivation of Vaccinia Virus by a Diffusible Component from Hydrolyzed Hyaluronic Acid, pp. 93-95
J. F. McCrea; F. Duran-Reynals

News and Notes, pp. 95-99


Technical Papers
Some Metabolic Responses of Dogs Having Low Body Temperature, pp. 100-101
Steven M. Horvath; B. K. Hutt; G. B. Spurr; G. E. Stevens
Chemical Transformation of Steroids by Adrenal Perfusion VI. Allopregnane-21-ol-3,20-dione, pp. 101-102
Andre S. Meyer
A Remotely Controlled Pipetting Apparatus for Radioisotopes, pp. 102-103
Walter E. Kisieleski; Donald F. Uecker
The Effect of Progesterone on Rate of Phosphate Release from Adenosine Triphosphate by Rat Liver Homogenates, pp. 103-107
Howard W. Jones; Ruth Wade
A Simplified Method for Cultivation of Poliomyelitis Virus in Tissue Culture, pp. 107-109
C. P. Li; Morris Schaeffer
On a New Derivative of Thiamine with Cysteine, pp. 109-111
Taizo Matsukawa; Shojiro Yurugi
The Effect of Whole Blood Transfusion on Dogs Receiving a Maximal Sublethal (LD0) Exposure to Ionizing Radiation, pp. 111-112
R. W. Miller; W. K. Cotton; S. N. Swisher
Effect of Posture on the Elimination of Radon in the Breath, pp. 112-114
E. J. Martin; J. K. W. Ferguson
Ion Exchange Effect on Alkaline Phosphatase of Serum with Reference to Cancer, pp. 114-115
Adolph Bernhard; Louis Rosenbloom


Comments and Communications
Aphids Carried by Wind Currents, pp. 115-116
George N. Wolcott
Books for Israel, p. 116
Nathan Weiner
A System of Nomenclature for the Varieties of Human Hemoglobin, pp. 116-117
Amoz I. Chernoff; Ben Fisher; John W. Harris; Harvey A. Itano; Eugene Kaplan; Karl Singer; James V. Neel
The First Law of Fluorescence, p. 117
Jack De Ment


Book Reviews
----------------, pp. 117-118
Methods and Principles of Systematic Zoology
Ernst Mayr; E. Gorton Linsley; Robert L. Usinger
Review author[s]: G. G. Simpson
----------------, p. 118
Fatigue and Fracture of Metals
William M. Murray
Review author[s]: A. G. Guy
----------------, p. 118
The Theory of Homogeneous Turbulence
G. K. Batchelor
Review author[s]: R. C. Binder


Association Affairs
Hotel Headquarters, Seventh Boston Meeting, December 26-31, 1953, pp. 119-120
Raymond L. Taylor

Previous Issue: New Series, Vol. 118, No. 3055, Jul. 17, 1953
Next Issue: New Series, Vol. 118, No. 3057, Jul. 31, 1953



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