Active Members. 
Roark, Louis, Box 1162 Tulsa, Oklahoma. 
Petroleum Geologist, Roxana Petroleum Company. 
Roberts, Chester R., Hougham St., Franklin. 
Professor of Chemistry. 
Sheak, Wm. H., 162 N. 20th St., Philadelphia, Pennsylvania. 
Mammalogy. 
Sherman, George W., 4 Murdock Flats, West Lafayette. 
Assistant Professor of Physics, Purdue University. 
Shonle, Horace A., Indianapolis. 
Chemist, Eli Lilly & Company. 
Showalter, Ralph W., Indianapolis, care Eli Lilly & Company. 
Director of the Biological Department. 
Silvey, Oscar W., College Station, Texas. 
Professor of Physics, Texas Agricultural College. 
Charles Piper Smith, 354 South 10th St., San Jose, California. 
Botanist. 
Smith, John E., Route No. 6, Franklin. 
Professor of Physics. 
Smith, Russell P., Kendallville. 
Chemistry. 
Smith, Paul, 122 EK. Ohio St., Indianapolis. 
Physics. 
Snodgrass, Robert E., 2063 Park Road, Washington, D. C. 
Bureau of Entomology: Entomologist. 
Southgate, Helen A., 218 W. 6th St., Michigan City. 
Biology. 
Spitzer, George, 1000 Seventh St., West Lafayette. 
Dairy Chemist, Agr. Exper. Station, Purdue University. 
Spong, Philip, 3873 E. Washington St., Indianapolis. 
Student in Butler College. 
Stockdale, Paris, 521 E. Second St., Bloomington. 
Assistant in Geology, Indiana University. 
Stone, Ralph B., 307 Russell St., West Lafayette. 
Registrar and Professor of Mathematics, Purdue University. 
Sulzer, Elmer G., Madison. 
Geology. 
Suter, E. M., 1437 Broadway, Ft. Wayne. 
Teacher of Chemistry and General Science. 
Tatlock, Myron W., Indianapolis, Care Shortridge High School. 
Teacher in Physics. 
Taylor, Joseph C., 117 9th St., Logansport. 
(Medical Student.) 
Terry, Dr. Oliver P., 215 Sheetz St., West Lafayette. 
Professor of Physiology and University Physician. Purdue. 
Tetrault, Philip A., 607 University St., West Lafayette. 
Assistant Professor of Bacteriology, Purdue University. 
Test, Louis A., 222 North St., West Lafayette. 
Professor of General Chemistry, Purdue University. 
Tevis, Emma L., 122 W. 18th St., Indianapolis. 
Department of Experimental Medicine, Eli Lilly & Company. 
