Active Members. 
Williams, A. A., Valparaiso. 
Professor of Mathematics, Valparaiso University. 
Wilson, Arthur J., 901 W. Wabash St., Crawfordsville. 
Professor of Chemistry, Wabash College. 
Wilson, Charles E., Exper. Station, St. Croix, Virgin Islands. U. S. A. 
Zoologist and Entomologist, Agricultural Experiment Station. 
Wilson, Mrs. Mildred N.. St. Croix, Virgin Islands, U. S. A. 
Plant Physiology. 
Wilson, Mrs. Etta S., 2 Clarendon Ave., Detroit, Michigan. 
Field Secretary, Audubon Society. 
Ornithology, Botany, Zoology. 
Wilson, Ira T., 521 Kirkland Ave., Bloomington. 
Zoology, Indiana University. 
Winkenhofer, Walter, Huntingburg. 
Graduate Student in Botany, Indiana University. 
Wolfe, Harold E., 314 N. Washington St., Bloomington. 
Assistant Professor of Mathematics, Indiana University. 
Wood, Harry W., Bloomington. 
Extension Division, Indiana University. 
Geography and Biology. 
Wright, William L., Indianapolis. 
Bacteriologist, Eli Lilly & Company. 
Wynn, Dr. Frank B., 421 Hume-Mansur Building, Indianapolis. 
Professor of Pathology, Indiana University School of Medicine. 
Young, Gilbert A., 739 Owen St., Lafayette. 
Head of School of Mechanical Engineering, Purdue University. 
Young, Paul A., 619 8S. Randolph St., Garrett. 
Senior in Botany, Wabash College. 
Yuncker, Truman G., Wood St., Greencastle. 
Professor of Biology, DePauw University. 
Zebrowski, George, 521 State St., West Lafayette. 
Senior in Zoology. Purdue University. 
Zehring, William A., 303 Russell St., West Lafayette. 
Associate Professor of Mathematics, Purdue University. 
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