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Science, New Series, Vol. 104, No. 2706, Nov. 8, 1946


Previous Issue: New Series, Vol. 104, No. 2705, Nov. 1, 1946
Next Issue: New Series, Vol. 104, No. 2707, Nov. 15, 1946


Synthetic Penicillin, pp. 431-433+450
Vincent du Vigneaud; Frederick H. Carpenter; Robert W. Holley; Arthur H. Livermore; Julian R. Rachele

Radar Observations during Meteor Showers: 9 October 1946, pp. 434-435
Ross Bateman; A. G. McNish; Victor C. Pineo


Technical Papers
The Influence of Liver L. casei Factor on Spontaneous Breast Cancer in Mice, pp. 436-437
R. Lewisohn; C. Leuchtenberger; R. Leuchtenberger; J. C. Keresztesy
Stability of Carotene in Dehydrated Carrots Impregnated with Antioxidants, pp. 437-438
T. E. Weier; C. R. Stocking
Synthetic L. casei Factor (Folic Acid) in Treating Certain Anemias in Man, p. 439
Grace A. Goldsmith


News and Notes, pp. 440-444


In the Laboratory
Synthetic Media for Penicillin Production, pp. 445-446
R. W. Stone; M. A. Farrell
Tests of Screening Effectiveness against Insects, p. 447
S. S. Block


Letters to the Editor
An Experimental Compressed-Air Plant Sprayer, p. 448
Tom Eastwood
Projection of Meteor Trails on the Moon, pp. 448-449
James C. Bartlett
Whole-Blood Cholinesterase Determinations in Some Hematologic Dyscrasias; Low Cholinesterase Values in the Leucoses, p. 449
R. D. Barnard; H. Sprinz; H. M. Fitch; R. A. Lehman; R. A. Walker
A Simply Constructed Biophotometer, p. 449
Samuel A. Goldblith


Book Reviews
----------------, p. 450
Mathematical Methods of Statistics
Harald Cramèr
Review author[s]: J. L. Doob

Previous Issue: New Series, Vol. 104, No. 2705, Nov. 1, 1946
Next Issue: New Series, Vol. 104, No. 2707, Nov. 15, 1946



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