ANIMAL MECHANICS. 



131 



tendon of the thumb, and must exert, by its oblique pull, a 

 distinct action upon that digit.* 



In the Virginian and Japanese Bears I found the fol- 

 lowing results : — 



Virginian Bear {deep flexors of fingers). 



Flexor dig. prof.. . 



100 



1. First finger, 



. . 9. 1 per cent. 



2. Second finger, . . 



. ■ 15-9 <> 



^ 1 mrn fin rrov 



1. X XIII LI niiytji, • • 



16.9 „ 



4. Fourth finger, . . 



• • 15-3 » 



6. Fifth finger, 



. • 7-8 „ 



7. Deficiency,. . . 



• • 35-° » 



Total, . 



. 100.0 



Japanese Bear {deep 



flexors of fingers). 



Flexor dig. prof, 



. . 100 



1. Five fingers, 



. 69.4 per cent. 



2. Deficiency, . . . 



. . 30.6 „ 



Total, 



. . 100.0 



(d). The Ungulates. — The Ungulates examined by me, in 

 reference to the relative strengths of the tendons of the deep 

 flexors of the fingers above and below the wrist, were the Goat 

 and the Llama. I examined the wrist tendons of the Rhinoce- 

 ros also, and found them to resemble those of the foot already 

 described, both as to arrangement and relative cross sections. 



* It has been suggested to me by Dr. Templeton, that the fl. poll. long. 

 enables the Fox to climb, an action of which Dogs and Wolves are incapable. 

 K 2 



