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Science, New Series, Vol. 107, No. 2773, Feb. 20, 1948


Previous Issue: New Series, Vol. 107, No. 2772, Feb. 13, 1948
Next Issue: New Series, Vol. 107, No. 2774, Feb. 27, 1948


Front Matter (2 pp.)
The Administration of Federal Research, pp. 179-183
W. V. Lambert

News and Notes, pp. 184-190


Comments and Communications
Mustard--Its Preparation and Use, p. 191
R. Macy
Method for Changing Units, p. 191
Burton H. Sanders
The ''Polished Rocks'' of Cornudas Mountain, New Mexico, pp. 191-192
Chapman Grant
Books for Korea, p. 192
Glenn A. Noble


Technical Papers
Factors Influencing the Mutation Rate in Neurospora, pp. 193-194
Helma Miller; William D. McElroy
The Chemical Nature and Origin of Phaseolus Virus 2 Crystalline Inclusions, p. 194
Saul Rich
Effect of Cholinesterase-Containing Globulin Fraction of Human Plasma in Macrocytic Anemia, pp. 195-196
Robert D. Barnard; John W. Mentha
Sulfaquinoxaline in the Control of Eimeria tenella and Eimeria necatrix in Chickens on a Commercial Broiler Farm, p. 196
L. C. Grumbles; J. P. Delaplane; T. C. Higgins
Weed Control in the Tropics, pp. 196-197
A. S. Crafts
The Male Frog, Rana pipiens, as a New Test Animal for Early Pregnancy, p. 198
P. B. Wiltberger; D. F. Miller
Chromosome Breakage in Plants Induced by Radioactive Phosphorus (P32), pp. 198-199
T. J. Arnason; Elaine Cumming; J. W. T. Spinks
The Electric Charge of Red Blood Cells in Malaria, pp. 199-200
W. B. Redmond


In the Laboratory
The Ecchymosis Test for Capillary Hemorrhagic Diathesis, pp. 201-202
Alfred Lewin Copley
Method for Making Cartesian Divers, pp. 202-203
C. Lloyd Claff
Laboratory Preparation and Decontamination of Mustard, p. 204
A. M. Reeves; S. Love
The Excystment of Colpoda duodenaria, pp. 204-205
A. G. R. Strickland; A. J. Haagen-Smit


Book Reviews
----------------, p. 205
General Psychology
John E. Bentley
Review author[s]: Max Meenes
----------------, pp. 205-206
Radar Aids to Navigation
John S. Hall
Review author[s]: John Q. Stewart


Scientific Book Register, p. 206

Previous Issue: New Series, Vol. 107, No. 2772, Feb. 13, 1948
Next Issue: New Series, Vol. 107, No. 2774, Feb. 27, 1948



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