Rain. Intense rainfall at Dubuque, Iowa, July 9, 1919. by J. H. Spencer [abstracted by C. F. B.]; Intense rainstorm of Oct. 4, 1919, at Dubuque, Iowa, by J. H. Spencer; Some broader aspects of rain intensities in relation to storm sewer design, by Robert E. Horton, abstracted [by C. L. M.]; Intensity of precipitation, by W. J. Humphreys; Water contents of atmosphere in relation to heavy rainfalls, note [by C. F. B.].