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Previous Issue: New Series, Vol. 71, No. 1842, Apr. 18, 1930
Next Issue: New Series, Vol. 71, No. 1844, May 2, 1930
Front Matter (4 pp.)
International Cooperation in Geographical Work, pp. 425-429
- William Bowie
Obituary
- Arthur McQuiston Miller Memorial Services, p. 429
- Memorials, p. 429
- Recent Deaths, pp. 429-430
Scientific Events
- A Chemistry House in London, p. 430
- A Scientific Advisory Board for the Westinghouse Research Laboratories, pp. 430-431
- The Twenty-Fifth Anniversary of the Illinois State Geological Survey, p. 431
- The American Philosophical Society, pp. 431-432
Scientific Notes and News, pp. 432-436
Discussion
- The Future of Taxonomy, pp. 436-438
- Clarence E. Mickel
- Pressure Potential in a Fluid, p. 438
- W. H. Pielemeier
- Conglomerite, a New Rock Term, p. 438
- Bradford Willard
- Banana Stowaways Again, pp. 438-439
- Robert K. Enders
- When Believing is Seeing--An Optical Illusion, p. 439
- Ruth Fuller Stevens
Reports
- The Western Cooperative Oil Spray Project (1929), pp. 440-441
- R. H. Robinson; D. F. Fisher; Anthony Spuler
Scientific Apparatus and Laboratory Methods
- Sedimentation Tube for Mechanical Analyses, pp. 441-442
- Parker D. Trask
- Stock Cultures of Ameba, p. 442
- H. W. Chalkley
Special Articles
- The Chemical Control of Splenic Contraction, pp. 442-444
- J. M. D. Olmsted; S. F. Cook
- The Chemical Nature of Cypridina Luciferin, p. 444
- Sakyo Kanda
Books Received, p. 444
Science News, pp. x+xii+xiv
Previous Issue: New Series, Vol. 71, No. 1842, Apr. 18, 1930
Next Issue: New Series, Vol. 71, No. 1844, May 2, 1930