"->^-^rtr.^^. 



i 



PLATE XI 







r._ 



i 



■ 1^ 





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. 



!! 



r 





" 2. 



ii 



ii 



" 2476. 



" 3. 



" 4. 



I 



ii 



6. 



ii 



6. 



a 



7. 



ii 



8. 



a 



9. 



ii 



ii 



ii 



Male. 



ii 



a 



ii 



ii 



ii 



ii 



ii 



a 



ii 



ii 



" 2490. 



a 



a 



a 



a 



ii 



9.4.1b. 



" 2463. 



2483. 

 2467. 



2489. 

 2488. 





" 10. 



ii 



ii 



a 



2486. 



■7 





•■ 



'.J 



-4 



.7 



J 

 .J 



•i 



i 



A 





■n I^>' ^\^-i 



