QUADRUMANA. 



557 



with wonderful agility, but poorly represented by 

 any feats of a similar kind performed in a state of 

 captivity. Another peculiarity in the construction 

 of their hind feet, while it incapacitates them for walk- 

 ing in an erect position, admirably assists them in 

 climbing. Their hinder hands, or feet, are incapable 

 of being brought flat to the ground, as in man ; but 

 when endeavouring to stand, the soles nearly face 



FlG. 481. SKELETON OF MAN AND ORAXG. 



