os ers 
BULLETIN 
of the 
ILLINOIS NATURAL HISTORY SURVEY 
HARLOW B. MILLS, Chief 
Toe ee eT Se Th 
ae, a Fe 
nS a, Mabe 
ne? ie 
a 
Efficiency and Selectivity 
| of Commercial 
| Fishing Devices 
| Used on the Mississippi River 
WILLIAM C. STARRETT 
PAUL G. BARNICKOL 
Printed by Authority of the 
STATE QF ILLINOIS 
WILLIAM G,. STRATTON, Governor 
DEPARTMENT OF REGISTRATION AND EDUCATION 
VERA M. BINKS, Director 
NATURE 
