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Previous Issue: New Series, Vol. 68, No. 1770, Nov. 30, 1928
Next Issue: New Series, Vol. 68, No. 1772, Dec. 14, 1928
Front Matter (4 pp.)
The Planetesimal Hypothesis, pp. 549-559
- F. R. Moulton
Of Human Interest, pp. 559-560
- James G. Needham
Scientific Events
- Exhibit of Minerals in Ultra-Violet Light, p. 560
- Museums in the National Parks, pp. 560-561
- Service of the Weather Bureau to Aviation, p. 561
- Epilepsy Commission of the Harvard Medical School, pp. 561-562
- Foreign Scientific Men at the U. S. Forest Products Laboratory, p. 562
Scientific Notes and News, pp. 562-565
University and Educational Notes, pp. 565-566
Discussion and Correspondence
- Saving the Coconuts, pp. 566-567
- T. D. A. Cockerell
- ``An Unexplained Visual Phenomenon'', pp. 567-568
- Paul F. Gaehr; R. M. Packard
- Note upon the Occurrence of Otomesostoma Auditivum (Pless.) in the United States, p. 568
- J. S. Carter
- Salmonella Columbensis, p. 568
- Frederick W. Shaw
- Inhalation the Chief Factor in Onion Or Garlic Contamination of Milk, pp. 568-569
- Margaret B. MacDonald; M. Jacob
Quotations
- The Control of Malaria, p. 569
Protochlorophyll, pp. 569-570
- William H. Eyster
International Commission on Zoological Nomenclature Opinions 98 to 104, pp. 570-571
- C. W. Stiles
Scientific Apparatus and Laboratory Methods
- The Subcutaneous Lymph Sac of the Frog as a Culture Chamber, pp. 571-572
- Charles E. Hadley
- A Micro-Technique for Observing Oil Penetration in Citrus Leaves after Spraying, p. 572
- Hugh Knight
Special Articles
- On the Structure of Thymonucleic Acid, pp. 572-573
- P. A. Levene; E. J. London
- The Spectrum of Ionized Xenon (XeII), p. 573
- C. J. Humphreys; T. L. DE Bruin
- Thyroid-Fed Rats and High Room Temperatures, pp. 573-574
- Raymond M. Selle
Science News, pp. x+xii+xiv
Previous Issue: New Series, Vol. 68, No. 1770, Nov. 30, 1928
Next Issue: New Series, Vol. 68, No. 1772, Dec. 14, 1928