Contents

30 June 1972
Vol 176, Issue 4042

About The Cover

First known tornado cloud to be pho-tographed (Miner County, South Dakota, 28 August 1884). More South-erners than Northerners are killed by tornadoes, a fact that may be releated to differences in psychology. See page 1386. [Library of Congress; obtained from U.S. Weather Bureau; the photograph was probably taken by F. N. Robinson]