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Science, New Series, Vol. 115, No. 2983, Feb. 29, 1952


Previous Issue: New Series, Vol. 115, No. 2982, Feb. 22, 1952
Next Issue: New Series, Vol. 115, No. 2984, Mar. 7, 1952


Front Matter (1 p.)
Cancer Research, pp. 3a
J. Edward Spike

Optimum Location of a Photoelectric Observatory, pp. 223-226
John B. Irwin

Application of Echo-Ranging Techniques to the Determination of Structure of Biological Tissues, pp. 226-230
John J. Wild; John M. Reid

News and Notes, pp. 230-235


Technical Papers
Toxicity of Cellulose Acetate Sheets to Plants and Fish, p. 236
Karl Maramorosch
The Distribution of S35-Labeled L-Methionine Sulfoximine in the Rat, pp. 236-238
J. S. Roth; A. Wase; L. Reiner
Growth-Regulator Specificity in Relation to Ovary Wall Development in the Fig, pp. 238-239
Julian C. Crane
Protective Effect of Glycine on Sperm Exposed to Light, pp. 239-240
Arthur C. Giese; Patrick H. Wells
Enzymatic Synthesis of Higher Carbohydrates from Dextrose, pp. 240-241
J. Pfannmuller; A. Noë
Analcime in the Popo Agie Member of the Chugwater Formation, pp. 241-242
W. D. Keller
The Activation by Vitamin D of the Phosphorylation of Thiamin, pp. 242-243
C.-E. Räihä; O. Forsander
Demonstration concerning Pressure-Tension Relations in Various Organs, pp. 243-244
A. V. Wolf
An Air-Cleaning Apparatus for the Flame Photometer, pp. 244-245
John M. Olney; A. H. James
A New Reaction and Color Test for Allethrin and Pyrethrins, pp. 245-246
Louis Feinstein
Spraying of Particulate Suspensions Containing Infective Materials for Electron Micrographic Analysis, pp. 246-248
R. C. Backus
Schwarzschild-Villiger Effect in Microspectrophotometry, pp. 248-249
Hiroto Naora


Comments and Communications
International Organization of Scientific Documentation Based on Legislation, pp. 250-251
Jacques Avias
Vitality of the Aged, p. 251
C. H. Forsyth
Applications of Ecology and Economics to Fisheries, pp. 251-253
Martin D. Burkenroad; Curtis L. Newcombe
Erratum: The Use of an Ion Exchange Resin for the Hydrolysis of Casein and Coffee Proteins, p. 253


Book Reviews
----------------, pp. 253-254
Biochemistry and Physiology of Protozoa
André Lwoff
Review author[s]: R. E. Hungate
----------------, p. 254
The Vitamin B Complex
F. A. Robinson
Review author[s]: Esmond E. Snell


Scientific Book Register, p. 254

Previous Issue: New Series, Vol. 115, No. 2982, Feb. 22, 1952
Next Issue: New Series, Vol. 115, No. 2984, Mar. 7, 1952



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