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Science, New Series, Vol. 55, No. 1422, Mar. 31, 1922


Previous Issue: New Series, Vol. 55, No. 1421, Mar. 24, 1922
Next Issue: New Series, Vol. 55, No. 1423, Apr. 7, 1922


Front Matter (1 p.)


Dedication of the Norman Bridge Laboratory of Physics of the California Institute of Technology
Presentation by Norman Bridge, pp. 327-330
Address of Acceptance of the Norman Bridge Laboratory of Physics, pp. 330-332
R. A. Millikan
A Joint Investigation of the Constitution of Matter and the Nature of Radiation, pp. 332-334
George E. Hale
Research in the Norman Bridge Laboratory, pp. 334-335
H. A. Lorentz


Biotic Areas and Ecologic Habitats as Units for the Statement of Animal and Plant Distribution, pp. 335-338
L. R. Dice

The Most Northerly Record of the Capture in Atlantic Waters of the United States of the Giant Ray, Manta Birostris, pp. 338-340
E. W. Gudger

John Casper Branner, pp. 340-341
David Starr Jordan


Scientific Events
World Production of Coal in 1921, pp. 341-342
The Mount Everest Expedition, pp. 342-343
The American Chemical Society, pp. 343-344
The John Scott Medal Fund, p. 344


Scientific Notes and News, pp. 344-347
University and Educational Notes, pp. 347-348


Discussion and Correspondence
Selective Fertilization as an Indicator of Germinal Differences, pp. 348-349
D. F. Jones
Gravitational Absorption, pp. 349-350
Paul R. Heyl


Scientific Books
----------------, pp. 350-352
A Study of Some Social Beetles in British Guiana and of Their Relations to the Antplant Tachigalia
Wm. M. Wheeler
Five Years' Observations (1914-1918) on the Bionomics of Southern Nigerian Insects, Chiefly Directed to the Investigation of Lycœnid Life-Histories and to the Relation of Lycœnidœ, Diptera and Other Insects to Ants
Charles O. Farquharson
Review author[s]: T. D. A. Cockerell


Special Articles
Sealing Tungsten into Pyrex, pp. 352-353
L. T. Jones
A New Sclerotinia on Mulberry, pp. 353-354
E. A. Siegler; A. E. Jenkins


The American Mathematical Society, p. 354
R. G. D. Richardson

Previous Issue: New Series, Vol. 55, No. 1421, Mar. 24, 1922
Next Issue: New Series, Vol. 55, No. 1423, Apr. 7, 1922



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