Brief summary of a talk by F.E. Balmer, Extension Service, State College of Washington, at the 1931 AAACE meeting in Corvallis, Oregon. American Association of Agricultural College Editors.
Brief summary of a talk by J.T. Jardine, Chief, Office of Experiment Stations, U.S. Department of Agriculture, at 1931 AAACE convention, Corvallis, Oregon. American Association of Agricultural College Editors.
