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Science, New Series, Vol. 109, No. 2821, Jan. 21, 1949


Previous Issue: New Series, Vol. 109, No. 2820, Jan. 14, 1949
Next Issue: New Series, Vol. 109, No. 2822, Jan. 28, 1949


Solar Energy, pp. 51-57
Farrington Daniels

Uranium Deposits in the USSR, pp. 58-60
D. B. Shimkin


Technical Papers
Pentavalent Manganese, p. 61
H. H. Miller; L. B. Rogers
Note on the Genetics of Hypercholesterolemia, pp. 61-62
R. M. Stecher; A. H. Hersh
The Flowering and Seed-Setting of Sweet Potatoes in Puerto Rico, pp. 62-63
H. E. Warmke; H. J. Cruzado
Influence of Texture of Food on Its Acceptance by Rats, pp. 63-64
Anton J. Carlson; Frederick Hoelzel
The Influence of Brief Periods of Strenuous Exercise on the Blood Platelet Count, pp. 64-65
E. B. Gerheim; A. T. Miller
The Zone of Localization of Anti-Mouse-Kidney Serum as Determined by Radioautographs, pp. 65-66
David Pressman; Ruth F. Hill; Frank W. Foote
Growth of Potato Sprouts Retarded by 2,4,5-Trichlorophenoxyacetic Acid, pp. 66-68
Ora Smith; J. H. Ellison; Fred McGoldrick
A New Dietary Factor Related to Xanthine Oxidase, p. 68
W. W. Westerfeld; Dan A. Richert


Comments and Communications
The Miticidal Properties of Di (p-Chlorophenyl) Methyl Carbinol in Laboratory Insect Rearings, p. 69
Paul A. Dahm; Carl L. Bauer
Is There Laterite in Rocks of the Dakota Group?, p. 69
James Thorp; E. C. Reed
On the Site of Discovery of the ``Male Sterile'' John Baer Tomato Mutant, p. 69
W. E. Roever


Book Reviews
----------------, p. 70
Introduction to Chemical Thermodynamics
Luke E. Steiner
Review author[s]: Frederick D. Rossini
----------------, p. 70
The Recruitment, Selection, and Training of Social Scientists
Elbridge Sibley
Review author[s]: Eugene L. Hartley
----------------, pp. 70-71
A Symposium on the Use of Isotopes in Biology and Medicine
Review author[s]: Raymond E. Zirkle
----------------, p. 71
Chymia: Annual Studies in the History of Chemistry
Tenney L. Davis
Review author[s]: Morris C. Leikind


Scientific Book Register, p. 71
News and Notes, pp. 72-76

Previous Issue: New Series, Vol. 109, No. 2820, Jan. 14, 1949
Next Issue: New Series, Vol. 109, No. 2822, Jan. 28, 1949



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