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Science, New Series, Vol. 69, No. 1799, Jun. 21, 1929


Previous Issue: New Series, Vol. 69, No. 1798, Jun. 14, 1929
Next Issue: New Series, Vol. 69, No. 1800, Jun. 28, 1929


Front Matter (4 pp.)
The Application of Transmittancy Measurements to Biochemistry, pp. 631-636
Frank M. Schertz

Charles Depéret, pp. 636-637
Henry Fairfield Osborn

Franz Keibel, p. 637
G. L. S.

Carey V. Hodgson, pp. 637-638
William Bowie


Scientific Events
The Production of ``Talking'' Motion Pictures by the Department of Agriculture, p. 638
The Giannini Foundation of the University of California, pp. 638-639
The Settlement of the Undeveloped Areas of Canada, p. 639
The Cornell Center for Research in Biophysics, pp. 639-640
The Thirteenth Summer Meeting of the American Mathematical Association, pp. 640-641


Scientific Notes and News, pp. 641-644
University and Educational Notes, pp. 644-645


Discussion
Gift to down House of the Original Letters of Charles Darwin to Fritz Müller, p. 645
Henry Fairfield Osborn
A Case of Accidental Parasitism, pp. 645-646
George W. Hunter
Cephenomyia Sp. Killing Deer, pp. 646-647
C. R. Walker
Solar Eclipses, p. 647
Millicent Todd Bingham


Scientific Books
----------------, p. 647
Colour and Colour Theories
Christine Ladd-Franklin
Review author[s]: Howard C. Warren
----------------, pp. 647-648
Meteorology
David Brunt
Review author[s]: W. J. Humphreys


Scientific Apparatus and Laboratory Methods
Apparatus for the Detection of Substratum Communication Among Termites, pp. 648-649
Alfred E. Emerson; Robert C. Simpson
An Accurate Drop Recorder, pp. 649-650
O. S. Gibbs


Special Articles
A Study of Iodine in South Carolina, pp. 650-651
J. H. Mitchell
A New Disease of Douglas Fir, pp. 651-652
Nathaniel O. Howard


Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 69, No. 1798, Jun. 14, 1929
Next Issue: New Series, Vol. 69, No. 1800, Jun. 28, 1929



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