The Association of American Geographers organized under Engeln, a symposium on the general subject of Penck's contribution to geomorphology and its relation to the Davisian system. The published Annual of Dec. 1940 devoted wholly to this subject reached me through Prof. Cressey four years later.

The Association of American Geographers organized under Engeln, a symposium on the general subject of Penck's contribution to geomorphology and its relation to the Davisian system. The published Annual of Dec. 1940 devoted wholly to this subject reached me through Prof. Cressey four years later.