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Science, New Series, Vol. 109, No. 2827, Mar. 4, 1949


Previous Issue: New Series, Vol. 109, No. 2826, Feb. 25, 1949
Next Issue: New Series, Vol. 109, No. 2828, Mar. 11, 1949


Research and Politics, pp. 219-227
Richard B. Goldschmidt

Age Determination by Radiocarbon Content: World-Wide Assay of Natural Radiocarbon, pp. 227-228
W. F. Libby; E. C. Anderson; J. R. Arnold


Technical Papers
1-C14-D-Glucose and 1-C14-D-Mannose, p. 229
John C. Sowden
Crushing Strengths of Minerals at Low Temperatures, pp. 229-230
James M. Weigle
A Microscope Stage for Continuous Anesthesia of Insects, p. 230
Edwin R. Willis; Louis M. Roth
Changes in Bark Thickness during Sap Flow in Sugar Maples, pp. 231-232
James W. Marvin
The Effect of Water Diuresis on Renal Plasma Flow, pp. 232-233
Carleton B. Chapman; Austin Henschel
Acid Phosphomonesterase Activity of Human Neoplastic Tissue, pp. 233-235
Henry M. Lemon; Charles L. Wisseman


Book Reviews
----------------, p. 236
Das Schrifttum der Bodenkultur. Wien, Austria: Hochschule für Bodenkultur
Review author[s]: Icko Iben
----------------, p. 236
Equazioni differenziali
F. Tricomi
Review author[s]: I. Opatowski


Association Affairs
The Gordon Research Conferences, p. 237
Program, pp. 237-240


News and Notes, pp. 240-244

Previous Issue: New Series, Vol. 109, No. 2826, Feb. 25, 1949
Next Issue: New Series, Vol. 109, No. 2828, Mar. 11, 1949



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