IN THE SERIES OF RESEARCH BULLETINS OF THE UNIVERSITY 



BULLETIN 



FROM THE 



Laboratoeies of Natural History 



OF THE STATE 



UNIVERSITY OP IOWA 



EDITORIAL STAFF 



LIBR 



Thomas H. Macbride Botany NEW 



Charles C. Nutting Zoology 60TA^ 



George F. Kay Geology QauL 



Volume VI Number 4 



CONTEXTS 



1. Fossil Coleoptera from the Wilson ranch near Florissant, Colorado. 



H. F. WiCKHAM 



2. A new Succinea. 



B. Shimek 



3. An artificial prairie. 



B. Shimek 



4. A long-stalked Elodea flower. 



E. B. Wylie 



Published by the University 

 Iowa City, Iowa 



