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Science, New Series, Vol. 107, No. 2784, May 7, 1948


Previous Issue: New Series, Vol. 107, No. 2783, Apr. 30, 1948
Next Issue: New Series, Vol. 107, No. 2785, May 14, 1948


Front Matter (2 pp.)
Centennial Celebration, AAAS--A Preview, pp. 455-456
Edmund W. Sinnott

The National Academy of Sciences: Abstracts of Papers Presented at 1948 Meeting, pp. 457-466
News and Notes, pp. 467-473


Technical Papers
A Coagulation Defect Produced by Nitrogen Mustard, p. 474
T. R. Smith; L. O. Jacobson; C. L. Spurr; J. G. Allen; M. H. Block
Recovery of Pneumoencephalitis (Newcastle) Virus from the Air of Poultry Houses Containing Infected Birds, pp. 474-475
P. D. DeLay; K. B. DeOme; R. A. Bankowski
High-Level Gravels of Western Grand Canyon, pp. 475-476
Donaldson Koons
The Path of Carbon in Photosynthesis, pp. 476-480
M. Calvin; A. A. Benson


In the Laboratory
Sodium Chlorite as an Aid in Paleobotanical and Anatomical Study of Plant Tissues, pp. 480-481
E. S. Barghoorn
Paper Chromatography Using Capillary Ascent, pp. 481-483
Roger J. Williams; Helen Kirby


Scientific Book Register, p. 484

Previous Issue: New Series, Vol. 107, No. 2783, Apr. 30, 1948
Next Issue: New Series, Vol. 107, No. 2785, May 14, 1948



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