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Previous Issue: New Series, Vol. 71, No. 1835, Feb. 28, 1930
Next Issue: New Series, Vol. 71, No. 1837, Mar. 14, 1930
Front Matter (4 pp.)
The American Association for the Advancement of Science
- The Relation of Anthropology to Indian and Immigrant Affairs, pp. 249-253
- Fay-Cooper Cole
The Gray Herbarium Card Index, pp. 253-256
- B. L. Robinson; Lesley C. Wilcox
Obituary
- John Robert Benton, p. 256
- Recent Deaths, p. 257
- Memorials, p. 257
Scientific Events
- Agriculture in England, pp. 257-258
- The Charles Lathrop Pack Fellowships in Forestry, p. 258
- Appropriations for Grants-In-Aid by the National Research Council, pp. 258-259
- Vernon Kellogg
- The Atlanta Meeting of the American Chemical Society, pp. 259-260
Scientific Notes and News, pp. 260-262
Discussion
- The Etiology of the Disease Psittacosis, pp. 262-263
- Charles Krumwiede; Mary McGrath; Carolyn Oldenbusch
- Bacterium granulosis and Trachoma of an Urban White Population, p. 263
- Peter K. Olitsky; Joseph R. Tyler
- Accumulation of Gas in Closed Collodion Sacs Immersed in Flowing Tap Water, pp. 263-264
- P. L. K. Gross; Louis S. Kassel
- History of the Discovery of Periodic Reversal of Heart-Beat in Insects, pp. 264-265
- John H. Gerould
- The Chemical Constitution of Pectinatella, p. 265
- Withrow Morse
Reports
- The Teaching of Hydrobiology and Aquiculture in American Universities, pp. 265-266
- James G. Needham
Scientific Apparatus and Laboratory Methods
- A Microcinematographic Apparatus for the Owner of a 16-mm Motion Picture Camera, pp. 266-267
- Heinz Rosenberger
Special Articles
- "Auximones" and the Stimulation of Lemna by Organic Matter, pp. 268-269
- Norman Ashwell Clark
- Occurrence of Germanium and Arsenic in Meteorites, pp. 269-270
- Jacob Papish; Zaida M. Hanford
Books Received, p. 270
Science News, pp. x+xii+xiv
Previous Issue: New Series, Vol. 71, No. 1835, Feb. 28, 1930
Next Issue: New Series, Vol. 71, No. 1837, Mar. 14, 1930