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Science, New Series, Vol. 115, No. 2993, May 9, 1952


Previous Issue: New Series, Vol. 115, No. 2992, May 2, 1952
Next Issue: New Series, Vol. 115, No. 2994, May 16, 1952


Scientists and the NSF, pp. 3a
Paul E. Klopsteg

Front Matter (1 p.)
Bacterial Life at the Bottom of the Philippine Trench, pp. 507-508
Claude E. ZoBell

George William Scarth: 1880-1951, p. 509
J. Levitt

News and Notes, pp. 510-514


Technical Papers
Birefringent Stepgauge, pp. 515-516
Katharine B. Blodgett
An Observation on the Infrared Absorption Spectrum of Dextran, pp. 516-517
Stanley C. Burket; Eugene H. Melvin
An Ultramicronutritional Bio-Assay Technique Employing Seeded Agar Tubes, pp. 517-519
Maurice E. Shils; Martin Horowitz; Anna Cheskis Gelman; Martin Sass
Effect of Wind-Generated Waves on Migration of the Yukon River in the Yukon Flats, Alaska, pp. 519-520
John R. Williams
Crystalline Visnagan, pp. 520-521
Eric Smith; L. A. Pucci; W. G. Bywater
Association of Enzymatic Activity with Submicroscopic Particles, pp. 521-522
Alton Meister
Membrane Resistance Changes in the Course of Axonal Spikes Modified by Low Na+ Concentration, pp. 522-523
Harry Grundfest; Rita Guttman; Charles D. Hendley; Irwin B. Wilson
Blood Transfusion in Irradiation Hemorrhage, pp. 523-526
J. Garrott Allen; Clair E. Basinger; Jerome J. Landy; Margaret H. Sanderson; Daniel M. Enerson


Comments and Communications
Some Punkins!, p. 526
Leonard Haseman
Some Punkins!, p. 526
Leonard Haseman
The Alleged Disappearance of Hunger during Starvation, pp. 526-527
A. J. Carlson; F. Hoelzel
Escherichia coli in the Intestine of a Wild Sea Lion, pp. 527-528
Carl H. Oppenheimer; Arthur L. Kelly
Autohemagglutinins in the Serum of Patients with Acute Lupus Erythematosus, pp. 528-529
Ruth A. Seale; Don R. Mathieson
Microbiological Conversion of Pregnenolone to Progesterone, p. 529
D. Perlman


Book Reviews
----------------, p. 530
Essay in Physics
Herbert L. Samuel
Review author[s]: P. W. Bridgman
----------------, pp. 530-531
Microbial Decomposition of Cellulose: With Special Reference to Cotton Textiles
R. G. H. Siu
Review author[s]: Rogers B. Finch
----------------, p. 532
The Sucking Lice
G. F. Ferris
Review author[s]: John N. Belkin


Scientific Book Register, p. 532

Previous Issue: New Series, Vol. 115, No. 2992, May 2, 1952
Next Issue: New Series, Vol. 115, No. 2994, May 16, 1952



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