cover-title, p. 595-636, il. 32 p. of pl. and maps, 4°
Notes:
Notes:
SPECIAL ARTICLES.—Some characteristics of United States temperatures; by Robert DeC. Ward.—On depressions observed in values of solar radiation intensity, by Ladislas Gorczyński; translated by W. W. Reed.—Prolonged plant activity at Grand Haven, Mich., in autumn of 1920; by H. Tullson.—Heavy snowstorm in southern Michigan; Nov. 8-9, 1921, [by] D. A. Seeley; [with discussion by A. J. Henry].—Tornadoes of Nov. 17, 1921, in Arkansas; by W. C. Hickmon.—Great ice storm of Nov. 26-29 [1921] in Massachusetts; [by A. J. H.].—Artificial production of rain; by Harold Jeffreys.