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Previous Issue: New Series, Vol. 49, No. 1269, Apr. 25, 1919
Next Issue: New Series, Vol. 49, No. 1271, May 9, 1919
Front Matter (1 p.)
Cooperation between Zoological Laboratories and the Government Bureaus, pp. 409-412
- E. W. Nelson
The History of Poison Gases, pp. 412-417
- Clarence J. West
Duty Free Supplies, pp. 417-419
- Thomas B. Freas; W. L. Estabrooke
Scientific Events
- The Use of Reinforced Concrete in Shipbuilding, pp. 419-420
- Education and Science in the British Civil Service Estimates, pp. 420-421
Scientific Notes and News, pp. 421-422
University and Educational News, p. 422
Discussion and Correspondence
- Erroneous Generic Determinations of Bees, pp. 422-423
- Charles Robertson
- Geomorphology, pp. 423-424
- C. A. Cotton
- ``A Wave of Life'', p. 424
- G. B. Claycomb
Quotations
- The Physiology of a Working Day, pp. 424-425
Scientific Books
- ----------------, pp. 425-426
- Injurious Insects and Useful Birds
- F. L. Washburn
- Review author[s]: W. E. Britton
Anthropological Research, pp. 426-427
- Franz Boas; Aleš Hrdlička; Alfred M. Tozzer
Special Articles
- Egg-Weight as a Criterion of Numerical Production in the Domestic Fowl, pp. 427-429
- Philip Hadley
Societies and Academies, pp. 429-430
Back Matter (1 p.)
Previous Issue: New Series, Vol. 49, No. 1269, Apr. 25, 1919
Next Issue: New Series, Vol. 49, No. 1271, May 9, 1919