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Science, New Series, Vol. 104, No. 2712, Dec. 20, 1946


Previous Issue: New Series, Vol. 104, No. 2711, Dec. 13, 1946
Next Issue: New Series, Vol. 104, No. 2713, Dec. 27, 1946


Genes and Nucleoproteins in the Synthesis of Enzymes, pp. 581-584
S. Spiegelman; M. D. Kamen


Obituary
Enoch Karrer: 1887-1946, pp. 584-585
Carl M. Conrad
Philippe Lasseur: 1882-1946, p. 585
Walter C. Tobie
Bernice Maclean Shapiro: 1903-1946, pp. 585-586
Ann H. Morgan


Technical Papers
A Possible Avian Analogue of the Scrotum, pp. 586-587
R. B. Cowles; A. Nordstrom
Comparison of Some New Analgesic Compounds, pp. 587-588
Charles C. Scott; E. B. Robbins; K. K. Chen


Science Exhibition, p. 589
News and Notes, pp. 590-596


In the Laboratory
Photographic Measurement of Radiation Quality and Quantity, pp. 596-600
Jean Kieffer; Roy M. Seideman
The Use of Unsaturated Polyester Resins for Embedding Biological Material, pp. 601-602
Theodore H. Romaniak
A New Spectrophotometric Method for the Determination of Vitamin A, pp. 602-604
Jorge Awapara; Fred H. Mattson; John W. Mehl; Harry J. Deuel


Letters to the Editor
Life Insurance Medical Research Fund Grants, p. 605
Francis R. Dieuaide
Myosin and Adenosinetriphosphatase in Muscular Activity, p. 605
W. F. H. M. Mommaerts
The Possible Role of the Guppy, Lebistes reticulatus, on the Biological Control of Schistosomiasis mansoni, p. 605
José Oliver-González
Reduction of Excess Acetylcholine in the Serum of Pernicious Anemia Patients by Treatment with Pteroyl Glutamic Acid, Liver Extract, or Ventriculin, pp. 605-606
John Emerson Davis
On Virus Nomenclature, p. 606
Robert P. Hanson


Book Reviews
----------------, pp. 606-607
Scientists against Time
James Phinney Baxter
Review author[s]: Leonard Carmichael
----------------, pp. 607-608
Encyclopedia of Hydrocarbon Compounds, C1 to C5
Joseph E. Faraday
Review author[s]: Frederick D. Rossini
----------------, p. 608
Genera et species plantarum argentinarum
Review author[s]: Francis W. Pennell

Previous Issue: New Series, Vol. 104, No. 2711, Dec. 13, 1946
Next Issue: New Series, Vol. 104, No. 2713, Dec. 27, 1946



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