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Science, New Series, Vol. 74, No. 1910, Aug. 7, 1931


Previous Issue: New Series, Vol. 74, No. 1909, Special Issue Containing Reports of the First Pasadena Meeting of the American Association for the Advancement of Science and Associated Societies. Edited by Dr. Charles F. Roos, Permanent Secretary, Jul. 31, 1931
Next Issue: New Series, Vol. 74, No. 1911, Aug. 14, 1931


Front Matter (8 pp.)
Observations upon the Filterability of Bacteria, Including a Filterable Organism Obtained from Cases of Influenza, pp. 129-139
Arthur Isaac Kendall

Arrest of Geologic, Archeologic and Paleontologic Work in Central Asia, pp. 139-142
Henry Fairfield Osborn


Obituary
Aldred Scott Warthin, pp. 142-143
Peyton Rous
Memorials, p. 143
Recent Deaths, pp. 143-144


Scientific Events
The Jubilee Meeting of the British Society of Chemical Industry, p. 144
The Buckston Browne Surgical Research Farm, pp. 144-145
The Sixth International Congress of Genetics, pp. 145-146


Scientific Notes and News, pp. 146-150


Discussion
Reduction of Oxyluciferin by Atomic Hydrogen, p. 150
E. Newton Harvey; G. I. Lavin
``The Possible RĂ´le of Micro-Organisms in the Precipitation of Calcium Carbonate in Tropical Seas'', pp. 150-151
Chas. B. Lipman
Inherited Taste Deficiency, pp. 151-152
L. H. Snyder
Getting the Student to Use His Own Intellect, pp. 152-153
M. Louise Nichols
Positive Gas Pressure in Poplar, p. 153
Frank C. Gates


Societies and Academies, pp. 153-154


Scientific Apparatus and Laboratory Methods
Ruthenium Tetroxide as a Fixative in Cytology, pp. 154-155
D. C. Carpenter; B. R. Nebel
A Method for Locating the Larvae of the Mosquito Mansonia, p. 155
T. E. McNeel


Special Articles
On Atmospheric Electricity, pp. 155-157
C. S. Dorchester; L. W. Butler
Use of Protozoa in Measuring the Neutralizing Value of Cobra Anti-Serum, pp. 157-158
Charles H. Philpott


Books Received, p. 158
Science News, pp. 10a+12a+14a

Previous Issue: New Series, Vol. 74, No. 1909, Special Issue Containing Reports of the First Pasadena Meeting of the American Association for the Advancement of Science and Associated Societies. Edited by Dr. Charles F. Roos, Permanent Secretary, Jul. 31, 1931
Next Issue: New Series, Vol. 74, No. 1911, Aug. 14, 1931



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