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Science, New Series, Vol. 105, No. 2722, Feb. 28, 1947


Previous Issue: New Series, Vol. 105, No. 2721, Feb. 21, 1947
Next Issue: New Series, Vol. 105, No. 2723, Mar. 7, 1947


Front Matter (4 pp.)
Biotechnology: A New Fundamental in the Training of Engineers, pp. 217-219
Craig L. Taylor; L. M. K. Boelter

Technological Gains and Their Uses: A Review of Some Recent Economic Changes, pp. 220-223
Frederick C. Mills


Obituary
James Hopwood Jeans: 1877-1946, pp. 224-226
S. Chandrasekhar
Boston Meeting Statistics, p. 226
John M. Hutzel


News and Notes, pp. 227-232


Comments by Readers
Mathematical Cuneiform Texts, p. 232
The Darkening of Fruits and Vegetables, p. 232


Technical Papers
Comparative Toxicity of DDT Isomers and Related Compounds to Mosquito Larvae and Fish, pp. 233-234
Joseph M. Ginsburg
The Functions of the Intercortical Neurones in Sensorimotor Coordination and Thinking in Man, pp. 234-235
Karl U. Smith
Penicillin Site of Action, pp. 235-236
C. J. Cavallito
Leptospiral Infection among Rodents in Micronesia, p. 236
Joseph E. Alicata


In the Laboratory
Chemical Sterilization of Bacteriological Media by means of Mercuric Oxycyanide and Subsequent Inactivation of the Mercurial by Thioglycolate, p. 237
N. Grossowicz; D. Kaplan
A Spray Mixture Useful for Thinning Apples after Bloom, p. 238
A. L. Kenworthy
Cross-Sections of Undistorted Human Hair, p. 238
Stanley Marion Garn
Stability of Crystalline Sodium Penicillin G, p. 239
Bernard Berk; Beulah M. Shepard; Charles Glaser
An Operative Approach to the Treatment of Schistosomiasis mansoni Infections, pp. 239-240
J. Leonard Brandt
Radiographs with C14, pp. 240-241
A. V. Grosse; J. C. Snyder


Book Reviews
----------------, p. 242
Early Ambulation and Related Procedures in Surgical Management
Daniel J. Leithauser
Review author[s]: W. Wayne Babcock
----------------, p. 242
Functional Anatomy of the Mammal
W. James Leach
Review author[s]: Kenneth L. Duke


Scientific Book Register, p. 242

Previous Issue: New Series, Vol. 105, No. 2721, Feb. 21, 1947
Next Issue: New Series, Vol. 105, No. 2723, Mar. 7, 1947



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