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Previous Issue: New Series, Vol. 70, No. 1810, Sep. 6, 1929
Next Issue: New Series, Vol. 70, No. 1812, Sep. 20, 1929
Front Matter (4 pp.)
The Second Celebration of the Twenty-Fifth Anniversary of Research in the Carnegie Institution of Washington, pp. 243-250
Obituary
- Recent Deaths, pp. 250-251
- Memorials, p. 251
Scientific Events
- The King Prizes of the Peking Society of Natural History, pp. 251-252
- The Beit Memorial Fellowships, p. 252
- Western Forest Fires, pp. 252-253
- The New Building of the U. S. Department of Agriculture, p. 253
- Official American Delegates to the International Engineering Congress in Tokio, pp. 253-254
Scientific Notes and News, pp. 254-257
University and Educational Notes, pp. 257-258
Discussion
- The Origin of Chlorophyll and Its Relationship to the Blood Pigments, pp. 258-259
- Frank M. Schertz
- Significance of Post-Illinoian, Pre-Iowan Loess, pp. 259-260
- George F. Kay
- Peculiarly Shaped Hailstones, p. 260
- Chas. T. Knipp
- Mortality Statistics and the Length of Life, pp. 260-261
- J. T. Ryan
Quotations
- Sir Norman Lockyer and the Editorship of ``Nature'', pp. 261-262
Reports
- The Census of 1930, pp. 262-263
Scientific Apparatus and Laboratory Methods
- Construction of Micro-Thermocouples, pp. 263-266
- D. M. Whitaker
Special Articles
- The Earthworm Fauna of the United States, pp. 266-267
- G. E. Gates
- The Relationship of Black Chaff Disease of Wheat to Certain Physical and Pathological Characters, p. 268
- L. R. Waldron
Science News, pp. x+xii+xiv
Previous Issue: New Series, Vol. 70, No. 1810, Sep. 6, 1929
Next Issue: New Series, Vol. 70, No. 1812, Sep. 20, 1929