78 Darwin, and after Darwin. 
of things in the Quadrumana, seeing that in all these 
animals the feet are similarly curved inwards, to 
facilitate the grasping of branches. And even when 
walking on the ground apes and monkeys employ to 
a great extent the outside edges of their feet, as does 
Fic. 12.—Portrait of a young male gorilla (after Hartmann). 
also a child when learning to walk. The feet of a 
young child are also extraordinarily mobile in all 
directions, as are those of apes. In order to show 
these points, I here introduce comparative drawings 
of a young ape and the lower extremities of a still 
younger child. These drawings, moreover, serve at the 
