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Science, New Series, Vol. 81, No. 2090, Jan. 18, 1935


Previous Issue: New Series, Vol. 81, No. 2089, Jan. 11, 1935
Next Issue: New Series, Vol. 81, No. 2091, Jan. 25, 1935


Front Matter (1 p.)


The American Association for the Advancement of Science
The Social Sciences and National Planning, pp. 55-62
Wesley C. Mitchell


Scientific Events
The Agricultural Problems of Mexico, p. 62
The Lindbergh Collection of Spores in Arctic Areas, pp. 62-63
Grants in aid of Research Administered by the National Research Council, p. 63
Isaiah Bowman
Annual Meeting of the Metallurgical Advisory Board, pp. 63-64
The Directorship of the American Museum of Natural History, p. 64
Recent Deaths, pp. 64-65


Scientific Notes and News, pp. 65-68


Discussion
The Dutch Elm Disease, Graphium ulmi, in Connecticut, pp. 68-70
G. P. Clinton; F. A. McCormick
The Belgian National Research Council, pp. 70-71
A. J. Dempster
Oak Trees and the White Grub Menace, p. 71
C. L. Fluke; Paul O. Ritcher
The Biology of the Black Widow Spider, Latrodectus mactans, pp. 71-72
Wm. L. Jellison; C. B. Philip
A New South Dakota Meteorite, p. 72
Cleophas C. O'Harra
Ground Water and Forest Belt, p. 72
Karl T. Compton


Scientific Books
Infant Behavior, p. 73
Atlas of Infant Behavior: A Systematic Delineation of the Forms and Early Growth of Human Behavior Patterns
Arnold Gesell
Review author[s]: John E. Anderson
Mathematical Physics, pp. 73-74
Principles of Mathematical Physics
William V. Houston
Review author[s]: N. I. Adams


Scientific Apparatus and Laboratory Methods
Intratracheal Inoculations in the Rat, p. 74
L. Jourdonais; W. J. Nungester
The Preservation of Cartilage, pp. 74-75
V. Brock
Permanent Aceto-Carmine Preparations, p. 75
John B. Buck


Special Articles
The Similarity between Fasciations in Plants and Tumors in Animals and Their Genetic Basis, pp. 75-76
Donald F. Jones
Mottled Enamel of Deciduous Teeth, p. 77
Margaret Cammack Smith; H. V. Smith
The Disinhibition of Experimental Extinction in the White Rat, pp. 77-78
Walter S. Hunter


Books Received, p. 78
Science News, pp. 5a-7a
Back Matter (1 p.)

Previous Issue: New Series, Vol. 81, No. 2089, Jan. 11, 1935
Next Issue: New Series, Vol. 81, No. 2091, Jan. 25, 1935



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