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Science, New Series, Vol. 114, No. 2951, Jul. 20, 1951


Previous Issue: New Series, Vol. 114, No. 2950, Jul. 13, 1951
Next Issue: New Series, Vol. 114, No. 2952, Jul. 27, 1951


Front Matter (1 p.)
Antibiotic Growth Stimulants, pp. 3a
H. R. Bird

Radiocarbon Datability of Peat, Marl, Caliche, and Archaeological Materials, pp. 55-56
H. H. Bartlett

The Planning of Libraries for Military Research Establishments, pp. 57-59
Saul Herner; M. K. Heatwole


Technical Papers
Technetium in the Sun, pp. 59-61
Charlotte E. Moore
A Simple, Inexpensive Microhomogenizer, pp. 61-62
Herbert Brendler
Autoxidation in Lactating Mammary Gland Tissue, pp. 62-63
Richard Owen Moore; Walter L. Nelson
Concerning Orthography of Scientific Names, pp. 63-64
Jir̆í Paclt
Probable Extreme Age of Pegmatites from Southern Rhodesia, pp. 64-65
L. H. Ahrens; A. M. Macgregor
Static Electrification of Solid Particles by Spraying, pp. 66-68
S. J. Czyzak; D. T. Williams
Prevalence of Escherichia coli Strains Exhibiting Genetic Recombination, pp. 68-69
Joshua Lederberg
The Mode of Action of Growth Substances and Growth Inhibitors, pp. 69-70
H. Linser; K. Kaindl
Desoxyribonucleic Acid Content of Rat Liver Nuclei Influenced by Diet, pp. 70-73
J. O. Ely; M. H. Ross
A Suggested Simplification of Blood Volume Analysis Using the Dye T1824, p. 73
Seymour L. Shapiro


Comments and Communications
In vitro Production of Cortisone, pp. 74-75
A. Grevenstuk; Eric Ellenbogen; Harry Seneca
The Monarch Butterfly, pp. 75-76
N. D. Riley
Up or Down?, p. 76
Chapman Grant
Erratum, p. 76
G. W. Rawson


Book Reviews
----------------, p. 77
Remington's Practice of Pharmacy
E. Fullerton Cook; Eric W. Martin
Review author[s]: M. L. Neuroth
----------------, pp. 77-78
Yellow Fever
George K. Strode
Review author[s]: E. Harold Hinman
----------------, p. 78
Sourcebook on Atomic Energy
Samuel Glasstone
Review author[s]: Karl Lark-Horovitz
----------------, pp. 78-79
Biometric Analysis: An Introduction
Alan E. Treloar
Review author[s]: F. M. Wadley


Scientific Book Register, p. 79
News and Notes, pp. 80-84

Previous Issue: New Series, Vol. 114, No. 2950, Jul. 13, 1951
Next Issue: New Series, Vol. 114, No. 2952, Jul. 27, 1951



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