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Science, New Series, Vol. 92, No. 2393, Nov. 8, 1940


Previous Issue: New Series, Vol. 92, No. 2392, Nov. 1, 1940
Next Issue: New Series, Vol. 92, No. 2394, Nov. 15, 1940


Front Matter (4 pp.)


The National Academy of Sciences
Address of Welcome by the President of the University of Pennsylvania, pp. 411-412
Thomas S. Gates
Remarks at the Dinner by the President of the Academy, pp. 412-415
Frank B. Jewett
Abstracts of Papers, pp. 415-419


Obituary
Henry McElderry Knower, pp. 419-421
Ross G. Harrison
Recent Deaths and Memorials, p. 421


Scientific Events
The U. S. Weather Unit at Harvard, p. 422
The Canal Zone Biological Area, p. 422
The Lalor Foundation, p. 422
The Administration of the E. R. Squibb and Sons Award, p. 423
The Permanent Science Fund of the American Academy of Arts and Sciences, pp. 423-424
The Chemical Exposition, p. 424


Scientific Notes and News, pp. 424-427


Discussion
On the Theory of the Separation of Isotopes by Thermal or Centrifugal Methods, pp. 427-428
Arthur Bramley
The Standardization of Osmotic Pressure as a Term, pp. 428-429
S. C. Brooks
Equinoxes and Solstices, p. 429
W. J. Humphreys
Reference Citations and Microfilm, p. 429
Martin D. Young; G. Robert Coatney


Scientific Books
Progress by Cooperation, pp. 430-431
The New Systematics
Julian Huxley
Review author[s]: Frans Verdoorn


Special Articles
A Cancerogenic Tissue Extract from Human Sources, pp. 431-432
Paul E. Steiner
Radioactive Carbon as a Tracer in the Synthesis of Propionic Acid from CO2 by the Propionic Acid Bacteria, pp. 433-434
S. F. Carson; J. W. Foster; S. Ruben; M. D. Kamen
Massive "Acute" Precipitation of Free Sulfathiazole in the Urinary Tract, pp. 434-435
David Lehr; William Antopol; Jacob Churg


Scientific Apparatus and Laboratory Methods
A Modification of Riddle's Method of Prolactin Assay, pp. 435-436
Nao Uyei; Masao Itoh; Seiji Hayatsu; Fukuju Uyeno
Cellophane Cover Slips and a Method for Mounting, p. 436
Irene Bucholtz


Science News, pp. 8+10-11
Back Matter (1 p.)

Previous Issue: New Series, Vol. 92, No. 2392, Nov. 1, 1940
Next Issue: New Series, Vol. 92, No. 2394, Nov. 15, 1940



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