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Science, New Series, Vol. 93, No. 2421, May 23, 1941


Previous Issue: New Series, Vol. 93, No. 2420, May 16, 1941
Next Issue: New Series, Vol. 93, No. 2422, May 30, 1941


Front Matter (9 pp.)


The American Association for the Advancement of Science
Preliminary Announcement of the Durham, N. H., Meeting, pp. 481-485
F. R. Moulton


The American Philosophical Society. II
Abstracts of Papers Presented at the Philadelphia Meeting, pp. 485-488
Edwin G. Conklin


Scientific Events
A Reading Machine for Microfilms, p. 488
Fellowships in the Natural Sciences of the National Research Council, pp. 488-489
A New Society for X-Ray and Electron Diffraction Research Workers, pp. 489-490
Maurice L. Huggins
The Annual Meeting of the Trustees of Science Service, p. 490
Medal Day at the Franklin Institute, p. 490
The American Academy of Arts and Sciences, pp. 490-491
Recent Deaths and Memorials, p. 491


Scientific Notes and News, pp. 492-494


Discussion
Physics, Exacting beyond all Compromise, pp. 495-496
E. U. Condon
Incomplete Files of Current Periodicals in American Libraries, p. 496
Charles H. Brown
The Continuity of the Scientific Record, p. 496
Watson Davis
The University of Havana Summer School, pp. 496-497
Thomas Barbour


Scientific Books
Statistical Methods, pp. 497-498
Statistical Procedures and their Mathematical Bases
Charles C. Peters; Walter R. Van Voorhis
Statistical Methods for Medical and Biological Students
Gunnar Dahlberg
Applied General Statistics
Frederick E. Croxton; Dudley J. Cowden
Review author[s]: S. S. Wilks


Reports
Pure and Applied Science Research at Mellon Institute, 1940-41, pp. 498-500
W. A. Hamor


Special Articles
Age Susceptibility of Ducks to the Virus of the Rous Sarcoma and Variation of the Virus in the Duck, pp. 501-502
F. Duran-Reynals
Inositol and Spectacled Eye in Rats, p. 502
P. L. Pavcek; H. M. Baum
The Development of Early Mouse Embryos in the Extraembryonic Coelom of the Chick, pp. 502-503
S. Gluecksohn-Schoenheimer


Scientific Apparatus and Laboratory Methods
An Apparatus for Continuous, Rapid and Complete Extraction of Estrogens, pp. 503-504
Emanuel Meyrowitz; Jacob S. Beilly
Obtaining Blood from Mice, p. 504
L. R. Kuhn


Science News, pp. 8-10

Previous Issue: New Series, Vol. 93, No. 2420, May 16, 1941
Next Issue: New Series, Vol. 93, No. 2422, May 30, 1941



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