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Science, New Series, Vol. 65, No. 1690, May 20, 1927


Previous Issue: New Series, Vol. 65, No. 1689, May 13, 1927
Next Issue: New Series, Vol. 65, No. 1691, May 27, 1927


Front Matter (4 pp.)
Recent Discoveries Relating to the Origin and Antiquity of Man, pp. 481-488
Henry Fairfield Osborn

Nomenclatural Efficiency, pp. 489-491
E. P. Felt


Scientific Events
Memorial Services to Charles D. Walcott, pp. 491-492
J. W. Hungate
Activities of the American Museum of Natural History, p. 492
Meeting of Sigma Xi and Dedication of the New Physics Laboratory at Union College, p. 492
P. I. W.
Elections of the American Academy of Arts and Sciences, p. 493
The Medal Meeting of the Franklin Institute, p. 493


Scientific Notes and News, pp. 493-498
University and Educational Notes, p. 498


Discussion and Correspondence
Lability in Ferric Oxide Hydrosols, pp. 498-499
C. H. Sorum
"Finger Prints" of Minerals, p. 499
A. N. Winchell
Correlation of Mexican Bean Beetle Population with Original Forest Type, pp. 499-500
Neale F. Howard
Confusion in Scientific Terminology, pp. 500-501
R. G. Hudson


Scientific Books
----------------, p. 501
The Elements of General Zoology
William J. Dakin
Review author[s]: G. Kingsley Noble


Scientific Apparatus and Laboratory Methods
A New Device for Filing Microscope Slides, pp. 501-502
J. Howard Brown
A Method of Handling Small Objects Previous to Sectioning, pp. 502-503
R. J. Bean


Special Articles
The Chlorides of Ruthenium, p. 503
Jas. Lewis Howe
Studies in Microbial Thermogenesis, pp. 504-506
Lawrence H. James


American Association for the Advancement of Science
The Regular Spring Meeting of the Executive Committee, pp. 506-508
Burton E. Livingston


Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 65, No. 1689, May 13, 1927
Next Issue: New Series, Vol. 65, No. 1691, May 27, 1927



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