PLATE XI, 
Metacarpal bones of Bison americanus, showing Individual and Sexual Variation in size and form. 
The specimens are all from Big-Bone Lick, Kentucky. (All the figures one third the natural size.) 
Fig. 1. Female. Specimen No. 2466. 
oo oe 
7 « +o 2 2 
8 oe 
ee “ & 9463, 
“ 6. Male “ “ 9483 
“97 “ “ 9467 
“5 « “«  & 9489 
“9 # cabs 
‘74 10. 6c 66 a IA8E. 
