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Science, New Series, Vol. 118, No. 3075, Dec. 4, 1953


Previous Issue: New Series, Vol. 118, No. 3074, Nov. 27, 1953
Next Issue: New Series, Vol. 118, No. 3076, Dec. 11, 1953


Front Matter (1 p.)
American Society of Agricultural Engineers, p. 3
Ralph A. Palmer

Preview of the 120th Meeting, AAAS, Boston: December 26-31, 1953, pp. 661-682
News and Notes, pp. 683-692


Technical Papers
A Physoderma Disease of Barnyard Grass, pp. 693-694
M. J. Thirumalachar; Marvin D. Whitehead
Separation of the Purines and Pyrimidines by Ionophoresis on Filter Paper, pp. 694-695
D. P. Burma
Erythrocyte Mosaicism in a Pair of Sheep Twins, pp. 695-696
Clyde Stormont; W. C. Weir; L. L. Lane
Photosynthesis as a Photoelectric Phenomenon, pp. 696-697
Leonard S. Levitt
Tolerance of Certain Higher Plants to Chronic Exposure to Gamma Radiation from Cobalt-60, pp. 697-698
Arnold H. Sparrow; Eric Christensen
Antithyroid Activity of Thiocyanoimidazoles, pp. 698-699
Roger E. Koeppe; John L. Wood
Synthesis of 5-Hydroxykynurenine, p. 699
Katashi Makino; Hitoshi Takahashi


Book Reviews
----------------, p. 700
Psychosomatic Research
Roy R. Grinker
Review author[s]: Enoch Callaway
----------------, p. 700
Biochemical Preparations
Eric G. Ball
Review author[s]: Ralph C. Corley

Previous Issue: New Series, Vol. 118, No. 3074, Nov. 27, 1953
Next Issue: New Series, Vol. 118, No. 3076, Dec. 11, 1953



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