cover-title, p. 191-249, il. 17 p. of pl. and maps, 4°
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* For Sale by Superintendent of Documents. Paper, 25c. single copy, $2.50 a yr.; foreign subscription, $3.50.
Notes:
NOTE.—The Monthly weather review contains (1) meteorological contributions, and bibliography, including seismology, (2) an interpretative summary and charts of the weather of the month in the United States and on adjacent oceans, and (3) climatological and seismological tables dealing with the weather and earthquakes of the month. The contributions are principally as follows: (a) results of observational or research work in meteorology carried on in the United States or other parts of the world, (b) abstracts or reviews of important meteorological papers and books, and (c) notes.
SPECIAL ARTICLES.—Papers on tornadoes: The 13 tornadoes of Mar. 28, 1920 [articles by C. L. Mitchell and others]; The 4 tornadoes of Apr. 20, 1920 [articles by J. H. Jaqtmnnd others]; Tornado in Union County, N. C, Apr. 12, 1920, by G. S. Lindgren; Tornadoes in northeastern Oklahoma. May 2, 1920 [by J. A. Reihle]; Tornado and its cause, by W. J. Humphreys; Principal publications containing statistics of tornadoes in United States [by C. F. Talman].—Cloudiness in New York State; by Ernest S. Clowes.—Modifying factors in effective temperature, or principle of modified thermal influence on organisms; by Andrew D. Hopkins.—Some meteorological observations of bombing pilot in France, by Thomas R. Reed; [with discussion, by Charles F. Brooks].—Meteorological conditions affecting aviation in Mesopotamia, by C. W. B. Normand: abstracted [by C. L. M.].—Diffusion of light by rain, cloud, or fog, by A. Mallock; abstracted [by W. J. Humphreys].—Wind circulation as basis for forecasting location of pressure areas, [articles] by G. Reboul and L. Dunoyer; abstracted [by C. L. M.].—Influence of snow on development of vegetation in spring, by Peyriguey Jacques; discussed by Katharine Davis.
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* For Sale by Superintendent of Documents. Paper, 25c. single copy, $2.50 a yr.; foreign subscription, $3.50.