BULLETIN 
OF THE 
Wisconsin Natural History 
Society 
PUBLISHED WITH THE COOPERATION 
OF THE 
Public Museum of the City of Milwaukee 
EDITOR: 
RICHARD A. MUTTKOWSKI 
ASSOCIATE EDITORS: 
P. H. DERNEHL HOWLAND RUSSEL EDGAR E. TELLER F. W. WERNER 
WAVERLY PRESS 
BALTIMORE, MD. 
