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Science, New Series, Vol. 90, No. 2333, Sep. 15, 1939


Previous Issue: New Series, Vol. 90, No. 2332, Sep. 8, 1939
Next Issue: New Series, Vol. 90, No. 2334, Sep. 22, 1939


Front Matter (3 pp.)
The Species Complex in Biology and Education, pp. 241-246
Albert Davis Mead


Scientific Events
The Cornell Ornithological Expedition, p. 246
Balloon Flights into the Stratosphere, pp. 246-247
Courses in Modern Manufacturing and Research, p. 247
Mouse Genetics, p. 247
The American Association of Museums, pp. 247-248
The American Public Health Association, p. 248


Scientific Notes and News, pp. 248-251


Discussion
A Self-Limiting Mechanism in Sympathetic Homeostatic Adjustment, pp. 251-252
Amedeo S. Marrazzi
Chlorazol Fast Pink BKS, p. 252
R. E. Rose
"Stars" in American Men of Science, p. 252
J. H. G.; Stephen S. Visher
The Pacific Entomological Survey, pp. 252-253
G. D. Hale Carpenter


Scientific Books
Elementary Matrices, pp. 253-254
Elementary Matrices and Some Applications to Dynamics and Differential Equations
R. A. Frazer; W. J. Duncan; A. R. Collar
Review author[s]: C. C. MacDuffee


Societies and Meetings
The French Association for the Advancement of Science, pp. 254-255
The Medical Library Association, p. 255
Anna C. Holt


Special Articles
Radioactive Ion Exchanges in Living Protoplasm, p. 256
Lorin J. Mullins; S. C. Brooks
The Denaturation of Proteins by Detergents and Bile Salts, pp. 256-257
M. L. Anson
The Configuration of the Glutamic Acid of Adenocarcinoma Protein, pp. 257-258
L. Earle Arnow; Jeanette C. Opsahl
Poliomyelitic Virus in Sewage, pp. 258-259
John R. Paul; James D. Trask; C. S. Culotta


Scientific Apparatus and Laboratory Methods
Demonstration of the Shape of Cilia in Normal Motion, pp. 259-260
A. M. Shanes
A New Material for Mounting Nerve Tissue Sections in Paraffin for Silver Staining or Restaining, p. 260
Rosette Spoerri


Science News, pp. 10a+11a+12a

Previous Issue: New Series, Vol. 90, No. 2332, Sep. 8, 1939
Next Issue: New Series, Vol. 90, No. 2334, Sep. 22, 1939



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