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Science, New Series, Vol. 101, No. 2620, Mar. 16, 1945


Previous Issue: New Series, Vol. 101, No. 2619, Mar. 9, 1945
Next Issue: New Series, Vol. 101, No. 2621, Mar. 23, 1945


Front Matter (2 pp.)
The Essential Need of Fundamental Research for Social Progress, pp. 257-259
Alan Gregg

The Status and Problems of Research in the Native Languages of South America, pp. 259-264
J. Alden Mason


Obituary
Oscar Floyd Poindexter, pp. 264-265
Helen M. Martin
Deaths and Memorials, p. 265


Scientific Events
Endowment of the School of Chemical Engineering at the University of Cambridge, p. 266
The John Wesley Hyatt Award, p. 266
The Fourth Annual Science Talent Search, pp. 266-267
In Honor of Professor Dugald C. Jackson, p. 267


Scientific Notes and News, pp. 267-270


Discussion
Blancan as a Time Term in the Central Great Plains, pp. 270-271
Maxim K. Elias; John C. Frye; Claude W. Hibbard; Eugene C. Reed; C. Bertrand Schultz
Spinach and Bone Formation, p. 271
Roe E. Remington; Cecil L. Smith
Phosphorescent Texas Earthworms, pp. 271-272
Cyrus N. Ray
Comparative University Strength in Scientists Starred in "American Men of Science" V-VII, pp. 272-273
Stephen S. Visher
The Society for Freedom in Science, p. 273
J. A. Crowther; A. G. Tansley; John R. Baker


Scientific Books
Climatology, pp. 273-275
Methods in Climatology
Victor Conrad
Review author[s]: R. G. Stone
Analytical Geometry, p. 275
Analytical Geometry of Three Dimensions
W. H. McCrea
Review author[s]: H. S. M. Coxeter
Colorimetric Determination of Traces of Metals, pp. 275-276
Colorimetric Determination of Traces of Metals
E. B. Sandell
Review author[s]: James I. Hoffman


Special Articles
On the Nature of Refractoriness of Certain Gram-Negative Bacilli to Penicillin, pp. 276-277
Gregory Shwartzman
The Changes in Rat Kidney Cocarboxylase Associated with the Injurious Effects of dl-Serine, pp. 277-279
William H. Fishman; Wm. M. Govier
Castration Effects of the Inherited Hormonal Influence, pp. 279-281
Fern W. Smith
Quinine Action in Bacterial Growth and Disinfection, pp. 281-282
Frank H. Johnson; Isaac Lewin
Corn as an Etiological Factor in the Production of a Nicotinic Acid Deficiency in the Rat, p. 283
W. A. Krehl; L. J. Teply; C. A. Elvehjem


Scientific Apparatus and Laboratory Methods
Methods for Determining Refractive Indices in Polarized Light Microscopy, pp. 283-284
Philip W. West
Arrangement for Drying Proteins from the Frozen State, p. 284
Walter H. Seegers


Science News, p. 10

Previous Issue: New Series, Vol. 101, No. 2619, Mar. 9, 1945
Next Issue: New Series, Vol. 101, No. 2621, Mar. 23, 1945



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