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Science, New Series, Vol. 95, No. 2460, Feb. 20, 1942


Previous Issue: New Series, Vol. 95, No. 2459, Feb. 13, 1942
Next Issue: New Series, Vol. 95, No. 2461, Feb. 27, 1942


Front Matter (9 pp.)
Recent Archeological Research in Latin America, pp. 179-183
Wm. Duncan Strong

The Problems of Aging and of Vascular Diseases, pp. 183-186
Henry S. Simms


Obituary
Charles William Lines, Jr.: September, 1920-January, 1942, p. 186
Classmates and Friends
Recent Deaths, pp. 186-187


Scientific Events
New Haven Industrial Medical Service, p. 187
Health Services of the Commonwealth Fund, pp. 187-188
Stalin Prizes, p. 188
The Inter-America Bureau of the New York Academy of Medicine, pp. 188-189
The Shortage of Technically Trained Chemists, p. 189


Scientific Notes and News, pp. 189-192


Discussion
A Twelve-Month College Year: An All-Out Program, pp. 192-193
Alexander Silverman
Mean Sea Level and Sand Movement; A Reply, pp. 193-194
Francis P. Shepard; Eugene C. LaFond
On Toad and Frog Abundance after Heavy Rainfall, pp. 194-195
Arthur N. Bragg
Calendar Reform and the National Academy of Sciences, p. 195
W. E. Castle
Fisheries Literature for China, p. 195
W. F. Thompson


Special Correspondence
Analysis of Post-War Problems and Procedures, pp. 195-196
Hudson Hoagland
The James River Drainage Area, pp. 196-197
Sidney S. Negus


Scientific Books
Books on Geology, pp. 197-198
Outlines of Physical Geology
Chester R. Longwell; Adolph Knopf; Richard F. Flint
Outlines of Historical Geology
Charles Schuchert; Carl O. Dunbar
Outlines of Geology
Longwell; Knopf; Flint; Schuchert; Dunbar
Introduction to Geology
E. B. Branson; W. A. Tarr
Introduction to Physical Geology
William J. Miller
Field Geology
Frederic H. Lahee
Earth Sciences
J. Harlen Bretz
Outlines of Structural Geology
E. Sherbon Hills
Geology of Coal
Otto Stutzer
Review author[s]: Kirtley F. Mather
Molecular Spectra, p. 199
Review author[s]: Robert S. Mulliken


Reports
Defense Work of the Carnegie Institution of Washington, pp. 199-200


Special Articles
A Basic Mechanism in the Biological Effects of Temperature, Pressure and Narcotics, pp. 200-203
Frank H. Johnson; Dugald Brown; Douglas Marsland
Successful Rearing of a Second Generation of Mice on an Artificial Diet, pp. 203-204
Lois K. Rogers; L. W. McElroy; George R. Cowgill
Fertile Tetraploids of Sesame, Sesamum Indicum Loew, Induced by Colchicine, p. 204
D. G. Langham


Scientific Apparatus and Laboratory Methods
A Model Geyser, pp. 204-206
J. D. Forrester; Howard W. Thune
Origin of Dipeptidase in a Protozoan, p. 206
Wm. L. Doyle; Elizabeth K. Patterson


Science News, pp. 8-10

Previous Issue: New Series, Vol. 95, No. 2459, Feb. 13, 1942
Next Issue: New Series, Vol. 95, No. 2461, Feb. 27, 1942



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