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Science, New Series, Vol. 88, No. 2280, Sep. 9, 1938


Previous Issue: New Series, Vol. 88, No. 2279, Sep. 2, 1938
Next Issue: New Series, Vol. 88, No. 2281, Sep. 16, 1938


Front Matter (3 pp.)
Scientific Approaches to the Study of the Human Mind, pp. 225-230
Arnold Gesell

The American Mathematical Society 1888-1938, pp. 230-232
Albert E. Meder


Obituary
Fred Campbell Meier, p. 233
Nathan R. Smith
Recent Deaths and Memorials, pp. 233-234


Scientific Events
The Proposed Diversion of the Waters of Yellowstone Lake, p. 234
Changes of Personnel in the Food and Drug Administration, p. 234
Food Standards Committee of the Food and Drug Administration, pp. 234-235
The American Congress on Obstetrics and Gynecology, pp. 235-236
Symposium to Commemorate the Centenary of the Cell Theory, p. 236
Joseph Mayer


Scientific Notes and News, pp. 236-238


Discussion
Isolation of Uracil from Liver, p. 239
D. W. Woolley
Facetted Pebbles in Eastern Venezuela, pp. 239-240
G. A. Waring; Lee C. Armstrong
Isotopes of Uranium and Lead, p. 240
Alfred C. Lane
Authority Citations in Biological Nomenclature, p. 240
Arthur Paul Jacot


Special Articles
Induction by Fast Neutrons of Mutations in Antirrhinum and Myosotis, pp. 241-242
Roy M. Chatters
Reversible Inactivation of Phosphatase, p. 242
M. Kiese; A. B. Hastings
The Isolation of a Crystalline Compound with Vitamin K Activity, p. 243
S. A. Thayer; D. W. MacCorquodale; S. B. Binkley; Edward A. Doisy


Scientific Apparatus and Laboratory Methods
Centrifuging of Liquids, pp. 243-244
J. W. Beams
The Velocity of Sound, p. 244
R. C. Colwell; A. W. Friend


Science News, pp. 8a-10a

Previous Issue: New Series, Vol. 88, No. 2279, Sep. 2, 1938
Next Issue: New Series, Vol. 88, No. 2281, Sep. 16, 1938



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