SPECIAL ARTICLES.—Influence of Gulf water-surface temperatures on Texas weather; by I. R. Tannehill.—Accuracy of areal rainfull estimates; by Robert E. Horton.— Rainfall duration and intensity in India; by Robert E. Horton.—Are we having less snowfall? by Clarence J. Root.—National elimination balloon race from Indianapolis, Ind., July 4, 1923; by L. T. Samuels.—Auroral spectrum and upper strata of atmosphere, by L. Vegard; abstracted [by C. L. M.].—Characteristics of atmosphere up to 200 kilometers as indicated by observations of meteors, by G. M. B. Dobson: [abstracted by C. F. B.].