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Science, New Series, Vol. 109, No. 2820, Jan. 14, 1949


Previous Issue: New Series, Vol. 109, No. 2819, Jan. 7, 1949
Next Issue: New Series, Vol. 109, No. 2821, Jan. 21, 1949


Front Matter, p. 45
Social Responsibility, pp. 27-30+43
George Brock Chisholm


Technical Papers
Synthesis of Enantiomeric α-Lecithins, p. 31
Erich Baer; Morris Kates
Notes on the Life History of a Brachylaemid Trematode, p. 32
Edwin J. Robinson
Vitamin B14 and Cell Proliferation, pp. 32-33
Earl R. Norris; John J. Majnarich
Action of Enzymes on Vitamin B14 and Pteridines, pp. 33-35
Earl R. Norris; John J. Majnarich
A Synthesis of Benzene, Toluene, and Benzoic Acid Labeled in the Ring with Isotopic Carbon, p. 35
Melvin Fields; Morris A. Leaffer; John Rohan
A Comparative Study of the Hemoglobin and Red Blood Cells of Representative Diving and Dabbling Ducks, pp. 36-37
Perry W. Gilbert; Charles F. Bond
Liver Damage by Desoxycorticosterone, pp. 37-39
E. S. Sinaiko; H. Necheles
The Use of an Electrolytic Injector as a ``Compensating Device'' in Electrophoresis, pp. 39-40
P. Johnson; E. M. Shooter


Comments and Communications
Natural Vegetation in the Willamette Valley, Oregon, pp. 41-42
John E. Smith
A Tree-Trunk Squeeze-Up in Lava, p. 42
Alton A. Lindsey
Climatic Changes and Dark Nebulae, p. 42
Waldo S. Glock


In Memoriam
Joyce Clennam Stearns: 1893-1948, p. 43
Arthur H. Compton


Book Reviews
----------------, p. 44
Mikro-Methoden: zur Kennzeichnung organischer Stoffe und Stoffgemische
Ludwig Kofler; Adelheid Kofler
Review author[s]: A. J. Haagen-Smit
----------------, p. 44
Industrial Electronics Reference Book
Review author[s]: Ernst Weber
----------------, pp. 44-45
Drug Research and Development
Austin Smith; Arthur D. Herrick
Review author[s]: Walter H. Seegers


News and Notes, pp. 46-50

Previous Issue: New Series, Vol. 109, No. 2819, Jan. 7, 1949
Next Issue: New Series, Vol. 109, No. 2821, Jan. 21, 1949



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