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Previous Issue: New Series, Vol. 111, No. 2882, Mar. 24, 1950
Next Issue: New Series, Vol. 111, No. 2884, Apr. 7, 1950
Earthquakes in North America, pp. 319-324
- B. Gutenberg
Ray Lyman Wilbur: 1875-1949, pp. 324-327
- Robert E. Swain
Technical Papers
- Preliminary Note on the Occurrence of a New Protistan Parasite, Dermocystidium marinum n. sp. in Crassostrea virginica (Gmelin), pp. 328-329
- J. G. Mackin; H. Malcolm Owen; Albert Collier
- Action of Penicillin on Bacterial Utilization of Amino Acids and Peptides, pp. 329-331
- Sofia Simmonds; Joseph S. Fruton
- Effect of 2,4,5-Trichlorophenoxyacetic Acid on Ripening of Apples and Peaches, pp. 331-332
- P. C. Marth; C. P. Harley; A. L. Havis
- Partogrid, Proportional Divider for Use in Paper Chromatography (Partography), pp. 332-333
- Louis B. Rockland; Max S. Dunn
- Effect of Neoplastic Tissue on the Turnover of Desoxypentose Nucleic Acid, pp. 333-334
- Lola S. Kelly; Hardin B. Jones
- Presence of a Phosphatase in the Human Aortic Wall, p. 334
- Esben Kirk; E. Praetorius
- The Origin of Petroleum: Effects of Low Temperature Pyrolysis on the Organic Extract of a Recent Marine Sediment, pp. 335-337
- Walter L. Whitehead; Irving A. Breger
Comments and Communications
- A Simple Microfilm Reader and the Microfilm Process, p. 337
- Axel Leonard Melander
- The Mechanism of Ionization in Solution, p. 338
- Hussein Sadek
- Comparison of Peripheral Blood with Heart Blood in Guinea Pigs, pp. 338-339
- Paul G. Roofe; Homer B. Latimer; Martha Madison; Marguerite Maffet; Paul Wilkinson
Association Affairs
- Gordon Research Conferences June 26-September 1, 1950, pp. 340-344
- W. George Parks
News and Notes, pp. 345-348
Previous Issue: New Series, Vol. 111, No. 2882, Mar. 24, 1950
Next Issue: New Series, Vol. 111, No. 2884, Apr. 7, 1950