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Science, New Series, Vol. 97, No. 2525, May 21, 1943


Previous Issue: New Series, Vol. 97, No. 2524, May 14, 1943
Next Issue: New Series, Vol. 97, No. 2526, May 28, 1943


Front Matter (6 pp.)
The Constitution of Protoplasm, pp. 451-456
Albert Claude

The Utilization of Aquatic Food Resources, pp. 456-458
Chancey Juday


Obituary
William Albert Setchell, p. 458
Chas. B. Lipman
Recent Deaths, p. 459


Scientific Events
The Future of Food Production in Great Britain, p. 459
New Fellows of the Royal Society of Edinburgh, pp. 459-460
The Four Hundredth Anniversary of the Death of Copernicus, p. 460
The Department of Experimental Biology of the American Museum, pp. 460-461
The Electrochemical Society and the Kilgore Bill, p. 461
The American Academy of Arts and Sciences, p. 461


Scientific Notes and News, pp. 461-464


Discussion
``Mock Dominance'', pp. 464-465
Everett R. Dempster
A New Growth Factor for Streptococcus Lactis, p. 465
John C. Keresztesy; Edward L. Rickes; Jacob L. Stokes
Sulfaguanidine or Sulfa-Amidine?, p. 465
C. A. Hoppert
Class Distinction among American Men of Science, pp. 465-466
S. O. Mast


Scientific Books
Light, p. 466
Chemical Aspects of Light
E. J. Bowen
Review author[s]: Hugh S. Taylor
Embryology, pp. 466-467
The Embryological Treatises of Hieronymus Fabricius of Aquadependente. The Formation of the Egg and of the Chick (De Formatione Ovi et Pulli). The Formed Fetus (De Formato Foetu)
Howard B. Adelmann
Review author[s]: George W. Corner


Special Articles
Curare Alkaloids from Chondodendron Tomentosum, pp. 467-470
O. Wintersteiner; J. D. Dutcher
The in Vitro Effect of Insulin in Pigeon Breast Muscle, pp. 470-471
Lester Rice; E. A. Evans


Scientific Apparatus and Laboratory Methods
Isolation of an Active Substance from Calonyction Aculeatum Capable of Coagulating Castilla Latex, pp. 471-472
S. G. Wildman; A. V. McMullan; Rosamond Griggs


Science News, pp. 8-10

Previous Issue: New Series, Vol. 97, No. 2524, May 14, 1943
Next Issue: New Series, Vol. 97, No. 2526, May 28, 1943



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