Dr. L. J. Sanford on the Gorilla, 57 
size. This bone, as its name imports, isa key or brace to the 
shoulder, and in this function it is very important in all climb- 
ing or flying animals. In those not thus addicted, it is more 
rudimentary, and in those where the anterior extremity is em- 
ployed merely as an instrument of progressive motion on a plane 
surface, it is entirely wanting. 
The pelvis shaain). ta the gorilla, is decidedly anthropoid. In 
s bend gh to 
Preserve a corresponding relationship—and in conjunction, they 
make a longer limb than the gorilla’s, without an exception the 
bone give to that part a square and massive form, while the leg 
18 So devoid of them, that it has no calf, and hence no volume or 
Wilder,* of Boston, that the form and direction of the gluteei, in 
apes, is more favorable to leaping, than continuous walking. 
Nor does the structure and articulation of the foot, favor 
locomotion. The foot is not sufficiently sin Se to 
allow it, and a yet greater interference 1 t 
the great toe. By position, this member, in the chimpanzee anc 
gorilla, is a true thumb, being situated gyre scope 
Me ibuti i ology of Chimpanzee > 
Wilder, p71 Fron Preece Best Soe, Nat Hist, April 1, 1861 : 
Ax. Jour. Scr.—Srconp Serres, Vor. XXXIII, No. 97.—Jan., 1862. 
8 
