MISSISSIPP! RIVER AND 
TRIBUTARIES 
FRom PRESCOTT, WIS. TO LAMQILLE MINN. — 
MAP SHOWING AREAS 
SURVEYED IN 
FRESHWATER PEARL MUSSEL APPRAISAL INVES ~ 
TIGATION= JULY » AUGUST, 1910 
vader Dr. Norman /1. Grier. 
BUREAU OF FISHERIES 
W3TUS F 10LLER — 
