“jn, CONCHOLOGIN CESTRICA, ie 
He = as iar 

(i => Wp = 
MOLLUSCOUS ANIMALS 
AND THEIR 
ae Gilg che As Bien 
OF CHESTER COUNTY, P? “Be fafon of 
a ectonal Library 
WILLIAM D. HARTMAN, ND;, 
AND 
EZRA MICHENER, M.D. 
With Numerous Kustrations, 


« An undevout ee auation ee ism PRpeonion | Instip 
U 
o uy 











PHILADELPHIA: 
CLAXTON, REMSEN & HAFFELFINGER, 
624, 626 & 628 MARKET STREET. 
187 4. 
