:C3l 



R E P R T 



ON TH 



PRESENT STATE OF OUR KNOWLEDGE 



WITH REGARD TO 



THE MOLLUSCA 



OF THE 



WEST COAST OF NORTH AMERICA. 



BY 



PHILIP P. CARPENTER. 





[From the Retort of the British Association for the Advancement of 

 Science for 1856.] 



LONDON: 

 PRINTED BY TAYLOR AND FRANCIS, RED LION COURT, FLEET STREET. 



1857. 



