Bulletin of the Museum of Comparative Zoology 
AT HARVARD COLLEGE, 
Vota. Nov 6. 
POLYDACTYLISM IN MAN AND THE DOMESTIC ANIMALS, 
WITH ESPECIAL REFERENCE TO DIGITAL 
VARIATIONS IN SWINE. 
By C. W. PREnTISS. 
WitH TweENtTy-Two PLATES. 
CAMBRIDGE, MASS., U.S. A.: 
PRINTED FOR THE MUSEUM. 
APRIL, 19083. 
