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Science, New Series, Vol. 84, No. 2185, Nov. 13, 1936


Previous Issue: New Series, Vol. 84, No. 2184, Nov. 6, 1936
Next Issue: New Series, Vol. 84, No. 2186, Nov. 20, 1936


Front Matter (3 pp.)
The Research Chemist, Mankind's Devoted and Indispensable Servant, pp. 425-430
Marston Taylor Bogert

Conspicuous Astronomical Advances of the Year, pp. 430-431
Harlow Shapley


Scientific Events
The New Ultra-Centrifuge Plant at the Lister Institute, London, pp. 431-432
Gifts and Bequests to Museums, pp. 432-433
Election of Officers of the New York Academy of Medicine, p. 433
Nominees for President-Elect of the American Chemical Society, p. 433
Recent Deaths and Memorials, pp. 433-434


Scientific Notes and News, pp. 434-436


Discussion
Significant Figures in Statistical Constants, p. 437
Joseph Berkson
New Localities for the Black Widow Spider, p. 437
Donald C. Lowrie
Concerning a Name for Bottom Mud Food, pp. 437-438
Denis L. Fox; Edgar G. Amstein
Benthos, Benthic and "Benthotic", pp. 438-439
Leo Shapovalov
Food of Mud-Dwellers, p. 439
Agnes de Sales; A. Willey


The American Association for the Advancement of Science
The Cancer Symposium of the Medical Sciences Section, pp. 439-440
Vincent du Vigneaud


Special Articles
Nitrification in Presence of Organic Matter, pp. 440-441
K. Madhusudanan Pandalai
Possibility of Parthenogenesis in Grass, pp. 441-442
W. B. Gernert
Photochemical Oxidation of Ammonia in Sea Water, pp. 442-443
Norris W. Rakestraw; Alexander Hollaender


Scientific Apparatus and Laboratory Methods
Stop-Cocks for Mechanical Operation, pp. 443-444
C. F. Winchester
Fixation of Sessile Rotatoria, p. 444
W. T. Edmondson
Simple Aid for Counting Crowded Plates, p. 444
T. H. Butterworth


Books Received, p. 444
Science News, pp. 8a+10a

Previous Issue: New Series, Vol. 84, No. 2184, Nov. 6, 1936
Next Issue: New Series, Vol. 84, No. 2186, Nov. 20, 1936



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