Active Members. 29 
Sheak, William H., 703 N. 19th St., Philadelphia, Pa. 
Mammalogy. 
Showalter, Ralph W., Indianapolis. 
Director Biological Department, Eli Lilly & Co. 
Biology. 
Silvey, Oscar W., College Station, Texas. 
Physics, University of Texas. 
Smith, Chas. Piper, Hyattsville, Md. 
State Seed Inspection Officer. 
Systematic Botany. 
Snodgrass, R. E., 2063 Park Road, Washington, D. C. 
U. S. Bureau of Entomology, Extension Division. 
Entomology. 
Spitzer, George, 1000 Seventh St., West Lafayette. 
Dairy Chemist, Purdue University. 
Chemistry. 
Spong, Philip, 3873 E. Washington St., Indianapolis. 
Biology. 
Stoltz, Charles, 530 N. Lafayette St., South Bend. 
Physician. 
Stone, Ralph Bushnell, 307 Russell St., West Lafayette. 
Mathematics, Purdue University. 
Sulzer, Elmer G., Madison. 
Geology. 
Taylor, Joseph C., 117 Ninth St., Logansport. 
Student in University of Wisconsin. 
Terry, Oliver P., State St., West Lafayette. 
Professor of Physiclogy, Purdue University. 
Tetrault, Philip Armand, 607 University St., West Lafayette. 
Assistant Professor of Biology, Purdue University. 
Tevis, Emma Louise, 122 W. 18th St., Indianapolis. 
Department Experimental Medicine, Eli Lilly & Co. 
Thompson, Clem O., 105 N. High St., Salem. 
Superintendent of Schools. 
Biology. 
Thornburn, A. D., Indianapolis, care Pitman-Moore Company. 
Chemistry. 
Toole, E. H., 719 N. Main St., West Lafayette. 
Assistant Professor of Botany, Purdue University. 
Botany, Plant Physiology and Pathology. 
Troop, James, West Lafayette. 
Professor of Entomology, Purdue University. 
Tucker, William Motier, Apartment 33, Alhambra Court, Columbus, O. 
Ohio State University, Department of Geology. 
