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Science, New Series, Vol. 113, No. 2927, Feb. 2, 1951


Previous Issue: New Series, Vol. 113, No. 2926, Jan. 26, 1951
Next Issue: New Series, Vol. 113, No. 2928, Feb. 9, 1951


Front Matter (1 p.)
Systematics in Zoology, pp. 3a
Richard E. Blackwelder

Radiocarbon Dates, pp. 111-120
J. R. Arnold; W. F. Libby


Technical Papers
Clotting Time and Reaction Velocity in the Interaction of Bovine Fibrinogen and Thrombin, pp. 121-124
David F. Waugh; Betty J. Livingstone
Radiocarbon Age Measurements and Fossil Man in Mexico, pp. 124-125
Helmut de Terra
Lipase from Molds Grown on Oil Seeds, p. 125
C. V. Ramakrishnan; B. N. Banerjee
In vivo Transformation of D,1-3-Hydroxykynurenine in Xanthurenic Acid, pp. 125-126
L. Musajo; F. M. Chiancone; D. Coppini
Depilatory Action of the Intermediary Polymers of Chloroprene, pp. 126-127
Peter Flesch; Sheldon B. Goldstone
Decomposition of Streptomycin, p. 127
David Pramer; Robert L. Starkey


Comments and Communications
Chemical Research in Israel, p. 128
Ernst D. Bergmann
Chemical Research in Israel, p. 128
Ernst D. Bergmann
The Bible and the Earth's Shape, p. 128
Carl S. Wise
Fern Prothallia under Cultivation for Twelve Years, pp. 128-129
R. L. Walp
Individualistic or Statistical Approach?, p. 129
G. M. Kosolapoff
Errata: A Reevaluation of Steroid Nomenclature, p. 129


Book Reviews
----------------, pp. 130-131
The Flora of Bic and the Gaspé Peninsula, Quebec
H. J. Scoggan
Review author[s]: H. H. Bartlett
----------------, p. 131
Antennas
John D. Kraus
Review author[s]: R. A. Smith
----------------, pp. 131-132
Thoracic Surgery
Richard H. Sweet
Review author[s]: Adrian A. Ehler
----------------, p. 132
Elements of Human Physiology
Miriam Scott Lucas
Review author[s]: Raymond W. Root


Scientific Book Register, p. 132
News and Notes, pp. 133-136

Previous Issue: New Series, Vol. 113, No. 2926, Jan. 26, 1951
Next Issue: New Series, Vol. 113, No. 2928, Feb. 9, 1951



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