GEOLOGICAL SURVEY OF CALIFORNIA. 
J. D. WHITNEY, Srare Geotroaist. 
GEOGRAPHICAL 
CATALOGUE OF THE MOLLUSGA® » 
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FOUND WEST OF THE ROCKY MOUNTAINS, ~~ 
BETWEEN LATITUDES 33° AND 49° NORTH. 
By Ji: eH IClolos ER, (MDs 
SAN FRANCISCO: 
Towne & Bacon, Printers. 
a Ven 1867. 
