IOWA ACADEMY OF SCIENCE xiii 
Price, H. C State University, Columbus, Ohio 
Read, C. D Weather Bureau, Sioux City 
Repp, J. J Philadelphia, Pa. 
Savage, T. E Urbana, 111. 
Sirrine, F. A 124 South Ave., Riverhead, New York 
Sirrine, Emma Dysart, Iowa 
Spencer, A. C. U. S. Geological Survey, Washington, D. C. 
Stull, W. N Mallinckrodt Chemical Co., St. Louis, Mo. 
Todd, J. E Vermillion, S. Dak. 
Trelease, William Missouri Botanical Gardens, St. Louis, Mo. 
Udden, J. A Rock Island, 111. 
Weems, J. B Alleghany, West Va. 
Winslow, Arthur Kansas City, Mo. 
Youtz, L. A New York City, N. Y. 
