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Science, New Series, Vol. 81, No. 2107, May 17, 1935


Previous Issue: New Series, Vol. 81, No. 2106, May 10, 1935
Next Issue: New Series, Vol. 81, No. 2108, May 24, 1935


Front Matter (2 pp.)
The Mechanism of Enzyme Actions, pp. 471-475
K. George Falk


Obituary
Michael Idvorsky Pupin, pp. 475-479
A. P. Wills


Scientific Events
Annual Meeting of the Trustees of Science Service, p. 479
Annual Meeting of the American Academy of Arts and Sciences, pp. 479-480
Retirement of the Secretary of the Zoological Society of London, p. 480
Award of the Daniel Guggenheim Medal for Aeronautic Achievement to William Frederick Durand, pp. 480-481
Alfred D. Flinn
Recent Deaths, p. 481


Scientific Notes and News, pp. 481-484


Discussion
Foreign Geographic Names, pp. 484-485
Eugene Van Cleef
Further Attempts to Grow Chilomonas Paramecium in Inorganic Media, p. 486
J. B. Loefer; R. P. Hall
Shall Smoky Cities Go Treeless?, p. 486
H. B. Meller; L. B. Sisson
The William Herbert Centennial, pp. 486-487
Hamilton P. Traub
The Ganesh Prasad Prize, p. 487
David Eugene Smith


The American Association for the Advancement of Science
Minutes of the Executive Committee Meeting, pp. 487-489
Henry B. Ward


State Academies, pp. 489-491


Scientific Apparatus and Laboratory Methods
On an Arrangement for Studying the Conditions within Diffusion Layers, p. 491
Torsten Teorell
A Simple Reliable Time Clock, pp. 491-492
G. B. Ray; H. Lewine


Special Articles
Mutation Rate from Old Datura Seeds, pp. 492-493
J. L. Cartledge; A. F. Blakeslee
The Relation of Water and Electrolytes to Metabolism, pp. 493-494
Harry A. Davis
Calcifying Factors in the Diet of Salamander Larvae, p. 494
Esther M. Patch


Books Received, p. 494
Science News, pp. 6a-7a
Back Matter (1 p.)

Previous Issue: New Series, Vol. 81, No. 2106, May 10, 1935
Next Issue: New Series, Vol. 81, No. 2108, May 24, 1935



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