IOWA ACADEMY OF SCIENCE ix 
SiERiNE, Emma ...Dysart, Iowa 
SiRRiNE, P. A 124 South Ave., Riverhead, New York 
Spencer, A. C U. S. Geological Survey, Washington, D. C. 
Todd, J. E Lawrence, Kan. 
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. 
