JSTOR: Science: New Series, Vol. 73, No. 1885

Previous Issue: New Series, Vol. 73, No. 1884, Special Issue Containing Reports of the Fourth Cleveland Meeting of the American Association for the Advancement of Science and Associated Societies. Edited by Burton E. Livingston, Permanent Secretary, Feb. 6, 1931
Next Issue: New Series, Vol. 73, No. 1886, Feb. 20, 1931

Front Matter (4 pp.)

The American Association for the Advancement of Science

Some Present-Day Problems of Zoology Teaching, pp. 169-173
William A. Riley

Planes of Lateral Corrasion, pp. 174-177
Douglas Johnson

Scientific Events

Resolutions Adopted by the Council of the American Association for the Advancement of Science at Cleveland, pp. 177-178
In Honor of Professor James Ewing, p. 178
B. J. L.

The New York Post-Graduate Medical School and Hospital and Columbia University, pp. 178-179
The Braun-Schuchert Collection, p. 179
Conference on Medical Education, pp. 179-180
Meeting of Geologists at Toronto, p. 180

Scientific Notes and News, pp. 180-184

Discussion

Evidence of a Lower Level of Lake Superior, p. 185
L. R. Wilson

The Structure of Some Industrial Diamonds, pp. 185-186
Jerome Alexander

Bacterial Stem-Rot Disease of Hybrid Seedling Canes, p. 186
E. F. Roldan

The Foucault Experiment, p. 186
Martin Meyer

Scientific Books

----------------, pp. 186-189
A History of Applied Entomology (Somewhat Anecdotal)
L. O. Howard

Review author[s]: T. D. A. Cockerell

Scientific Apparatus and Laboratory Methods

A New Spring Balance for Measuring Water Content of Snow, pp. 189-190
George D. Clyde

Special Articles

Comparison between Irradiation of Diet and Supplemental Irradiation of Animals in Vitamin A and D Deficiency, pp. 190-191
F. E. Chidester; A. G. Eaton; N. K. Speicher

Hydrogen-Ion Concentration of the Alimentary Tracts of Fowl, Cat and Rabbit, pp. 191-192
Alvah R. McLaughlin

Twist in the Grain of Coniferous Trees, p. 192
Chester K. Wentworth

Science News, pp. x+xii+xiv

Science, New Series, Vol. 73, No. 1885, Feb. 13, 1931