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Previous Issue: New Series, Vol. 88, No. 2293, Dec. 9, 1938
Next Issue: New Series, Vol. 88, No. 2295, Dec. 23, 1938
Front Matter (3 pp.)
Selenology and Cosmogeology: Cosmic and Geologic Import of the Lunar Features, pp. 555-562
- Herman L. Fairchild
Scientific Events
- Intellectual Freedom, p. 562
- The Association of Scientific Workers, pp. 562-563
- The Annual Meeting of the Union of American Biological Societies, pp. 563-564
- George W. Hunter
- Geophysics as Applied to Continental Structure, p. 564
- H. A. Meyerhoff; H. T. Stetson; J. A. Fleming
- Recent Deaths and Memorials, pp. 564-565
Scientific Notes and News, pp. 565-568
Discussion
- What is Soil?, pp. 568-569
- W. F. Gericke
- Are There Different Critical Oxygen Concentrations for the Different Phases of Root Activity?, pp. 569-570
- Damon Boynton; J. DeVilliers; Walter Reuther
- A Peculiarity of Pigmentation of the Upper Arm of Negroes, pp. 570-571
- Palmer Howard Futcher
- Additional Records of Hippoboscidae from Mourning Doves, p. 571
- James M. Brennan
- The Teaching of Botany in American Colleges and Universities, p. 571
- E. L. Stover
Societies and Meetings
- The International Congress of Mathematicians, pp. 571-572
Reports
Special Articles
- Identification of the Filtrable, Transmissible Neurolytic Agent Isolated from Toxoplasma-Infected Tissue as a New Pleuropneumonia-Like Microbe, pp. 575-576
- Albert B. Sabin
- The Life-Maintaining Effect of Crystalline Progesterone in Adrenalectomized Ferrets, pp. 576-577
- Robert Gaunt; Harry W. Hays
- Nicotinic Acid and the Growth of Isolated Pea Roots, pp. 577-578
- Fredrick T. Addicott; James Bonner
Science News, pp. 8a-9a
Back Matter (1 p.)
Previous Issue: New Series, Vol. 88, No. 2293, Dec. 9, 1938
Next Issue: New Series, Vol. 88, No. 2295, Dec. 23, 1938