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Science, New Series, Vol. 66, No. 1705, Sep. 2, 1927


Previous Issue: New Series, Vol. 66, No. 1704, Aug. 26, 1927
Next Issue: New Series, Vol. 66, No. 1706, Sep. 9, 1927


Front Matter (8 pp.)


The British Association for the Advancement of Science
Darwin's Theory of Man's Descent as It Stands To-Day, pp. 201-208
Arthur Keith


Edward Bradford Titchener, pp. 208-209
Howard C. Warren


Scientific Events
Message from the Retiring President of the British Association, pp. 209-210
The Fifth International Genetics Congress, p. 210
The American Chemical Society, pp. 210-211


Scientific Notes and News, pp. 211-214
University and Educational Notes, p. 214


Discussion and Correspondence
The "Washboard" or "Corduroy" Effect Due to Travel of Automobiles over Dirt Roads, pp. 214-216
L. E. Dodd
The Reversible Mixing of Substances in the Condensed State at the Absolute Zero of Temperature, pp. 216-217
R. D. Kleeman
Double Covey of California Valley Quail, p. 217
R. M. Selle


Scientific Books
----------------, pp. 217-218
Man Not a Machine
E. Rignano
Review author[s]: G. H. Parker
----------------, p. 218
Traité de Geographie Physique
Emmanuel De Murtonne
Review author[s]: John W. Harshberger


Scientific Apparatus and Laboratory Methods
Accurately Timed Intermittent Lighting, pp. 218-219
Dean A. Pack
Centrifuging Filterable Viruses, p. 219
M. S. Marshall
Persimmon Seeds for Class Use, pp. 219-220
V. H. Young


Special Articles
The Occurrence of the Platinum Metals, pp. 220-221
Jas. Lewis Howe
The Encystment of Paramoecium in the Recta of Frogs, pp. 221-222
L. R. Cleveland
Natural and Experimental Ingestion of Paramoecium by Cockroaches, p. 222
L. R. Cleveland


Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 66, No. 1704, Aug. 26, 1927
Next Issue: New Series, Vol. 66, No. 1706, Sep. 9, 1927



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