The American Association for the Advancement of Science met at Des Moines, Iowa, on December 27, 1929, to January 2, 1930. Sessions of Section E were held on Monday and Tuesday, December 29 and 30, in the auditorium of the Des Moines Y. M. C. A. George F. Kay, Vice-President of the American Association for Section E, presided The retiring chairman was Frank Leverett. His address, entitled “Problems of the glacialist,” was read Monday afternoon and has since been published in full in Science. The papers presented in the four scientific sessions during the forenoon and afternoon of these two days dealt with the stratigraphy and paleontology of the Mississippi Valley and with the physiographic development or glacial history of various portions of the Northern States.
On Monday afternoon a public lecture, entitled “Earthquakes and what they tell us,” . . .