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Science, New Series, Vol. 91, No. 2356, Feb. 23, 1940


Previous Issue: New Series, Vol. 91, No. 2355, Feb. 16, 1940
Next Issue: New Series, Vol. 91, No. 2357, Mar. 1, 1940


Front Matter (9 pp.)


The American Association for the Advancement of Science
Divergent Pathways in Sexual Development, pp. 175-182
Wesley R. Coe


Obituary
William Snow Miller: 1858-1939, pp. 182-183
C. H. Bunting
Recent Deaths, p. 183


Scientific Events
A Mineral Map of Canada, pp. 183-184
Entomology at Dartmouth College, p. 184
Report of the President of the Carnegie Foundation for the Advancement of Teaching, pp. 184-185
Summer Conferences on Astronomy at the Harvard Observatory, p. 185
The American Institute of Mining and Metallurgical Engineers, pp. 185-186


Scientific Notes and News, pp. 186-189


Discussion
Rainbows at Honolulu, p. 189
Chester K. Wentworth
A Type Specimen Comes Home, pp. 189-190
C. W. Gilmore
Was the American Mano and Metate an Invention Made during Pleistocene Time?, pp. 190-191
Cyrus N. Ray
Authors' Abstracts, p. 191
Gordon S. Fulcher


Scientific Books
Virus and Rickettsial Diseases, pp. 192-194
Virus and Rickettsial Diseases: With Especial Consideration of Their Public Health Significance
Review author[s]: Thomas M. Rivers
California Shrubs, pp. 194-195
An Illustrated Manual of California Shrubs
Howard E. McMinn
Review author[s]: LeRoy Abrams


Reports
Finances of the American Association for the Advancement of Science, pp. 195-196
F. R. Moulton
Survey of Research in Industry, pp. 196-198
Ross G. Harrison


Special Articles
The Inactivation of Epidemic Influenza Virus by Nasal Secretions of Human Individuals, pp. 198-199
Thomas Francis
Chlorophyll as the Prosthetic Group of a Protein in the Green Leaf, pp. 199-200
Emil L. Smith
Vitamin B6 as an Accessory Growth Factor for Staphylococcus albus, pp. 200-201
S. P. Vilter; T. D. Spies


Scientific Apparatus and Laboratory Methods
Graphical Method for Determining Warburg Vessel Constants at Various Fluid Volumes, pp. 201-202
J. MacLeod; W. H. Summerson
Determination of Relative Humidity While Measuring Respiration in a Gas Train System, p. 202
Winston W. Jones


Science News, pp. 8-10

Previous Issue: New Series, Vol. 91, No. 2355, Feb. 16, 1940
Next Issue: New Series, Vol. 91, No. 2357, Mar. 1, 1940



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