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Previous Issue: New Series, Vol. 74, No. 1906, Jul. 10, 1931
Next Issue: New Series, Vol. 74, No. 1908, Jul. 24, 1931
Front Matter (10 pp.)
Cancer Research and the Scientific Method, pp. 55-60
- Ellice McDonald
Dr. Hillebrand as I Knew Him, pp. 60-62
- E. T. Allen
Obituary
- Memorials, p. 62
- Recent Deaths, p. 62
Scientific Events
- The Albert National Park in the Congo, p. 63
- The Hygienic Exposition in Dresden, p. 63
- Research Program of the Illinois State Geological Survey, pp. 63-64
- The Buffalo Meeting of the American Chemical Society, pp. 64-65
- In Honor of John R. Freeman, p. 65
Scientific Notes and News, pp. 66-69
Discussion
- The Decline in the Average Length of Life, p. 69
- Timothy Leary
- New Paleontologic Evidence on the Age of the Metamorphic Series of Northeastern Washington, p. 70
- C. C. Branson
- The Basal-Metabolic Rates of Vegetarians, pp. 70-71
- Glen Wakeham; Louis A. Hansen
- Reaction of the Contents of Trichinella spiralis cysts, p. 71
- W. P. N. Canavan
- Sex in the Louisiana Oyster, Ostrea virginica, pp. 71-72
- M. D. Burkenroad
- Correction on Psyllid-Yellows, p. 72
- A. M. Binkley
Scientific Books
- ----------------, pp. 72-73
- Review author[s]: Edward W. Berry
Scientific Apparatus and Laboratory Methods
- An Inexpensive Light Source for a Portable Microscope, pp. 73-74
- Harold D. Caylor; Truman E. Caylor
- Apparatus for Rapid Drying of Solutions, pp. 74-75
- Warren W. Ewing
Special Articles
- Thermoelectromotive Forces Produced by a Magnetic Field, pp. 75-77
- S. R. Williams
- The Production of Dental Caries in Rats Fed an Adequate Diet, pp. 77-78
- C. A. Hoppert; P. A. Webber; T. L. Canniff
- The Effect of Epinephrin-Free Suprarenal Extract on the Specific Dynamic Action of Foodstuffs, p. 78
- Alfred E. Koehler
Books Received, p. 78
Science News, pp. 10a+12a+14a
Previous Issue: New Series, Vol. 74, No. 1906, Jul. 10, 1931
Next Issue: New Series, Vol. 74, No. 1908, Jul. 24, 1931