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Science, New Series, Vol. 74, No. 1914, Sep. 4, 1931


Previous Issue: New Series, Vol. 74, No. 1913, Aug. 28, 1931
Next Issue: New Series, Vol. 74, No. 1915, Sep. 11, 1931


Front Matter (8 pp.)
The Matamek Conference on Biological Cycles, 1931, pp. 229-235
Ellsworth Huntington


Obituary
Calvin Henry Kauffman, p. 235
E. B. Mains
Memorials, p. 236
Recent Deaths, p. 236


Scientific Events
The Meeting of the British Association, pp. 236-237
The International Convention of the Electrochemical Society, p. 237
The Award of the Prize of the Research Corporation, pp. 237-238
The Proposed Surgical Building for Yale University, pp. 238-239
Therapeutic Trials Committee of the British Medical Research Council, p. 239


Scientific Notes and News, pp. 239-243


Discussion
The "Rickettsiae" and the Intracellular "Symbionts", p. 243
R. W. Glaser
The Cause of Mottled Enamel, p. 244
Margaret Cammack Smith; Edith M. Lantz; H. V. Smith
Relic of an Early Aerial Post, pp. 244-245
S. R. Williams


Scientific Apparatus and Laboratory Methods
The Abdominal Window, pp. 245-247
Walter L. Mendenhall
A Method for Ripening Haematoxylin Solutions Rapidly, p. 247
E. J. Kohl; C. M. James


Special Articles
Sexual Rhythm in the California Oyster (Ostrea lurida), pp. 247-249
Wesley R. Coe
Rice Bran, a Preventive of Perosis (Deforming Leg Weakness) in Chickens, pp. 249-250
Harry W. Titus; W. M. Ginn
The Formation of Glycine from Serine, p. 250
Ben H. Nicolet


Books Received, p. 250
Science News, pp. 10a+12a+14a

Previous Issue: New Series, Vol. 74, No. 1913, Aug. 28, 1931
Next Issue: New Series, Vol. 74, No. 1915, Sep. 11, 1931



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