SOCIAL AND MENTAL QUALITIES 49 



that he was ever an ape, but it does point to the 

 belief that he has once occupied a Hke horizon in 

 nature to that now occupied by the ape, and that 

 having emerged from it, he still retains traces of the 

 habit. 



This peculiarity is still more easily observed in 

 children than in adults. In early infancy all children 

 are inclined to be bow-legged, and in their first 

 efforts at walking, invariably press most of their 

 weight on the outer edge of the foot, and curve the 

 toes inward, as if to grasp the surface on which the 

 foot is placed. The instinct to prehension cannot 

 be mistaken ; it differs in degree in different races, 

 and is vastly more pronounced in negro than in 

 white infants. 



There is another peculiar feature in the walk of 

 the chimpanzee. The motion of the arms and legs 

 do not alternate with the same degree of regularity 

 that they do in man or quadrupeds. This ape uses 

 his arms more like crutches. They are moved for- 

 ward, not quite, but almost at the same instant, and 

 the motion of the legs is not at equal intervals. To 

 be more explicit : the hands are placed almost oppo- 

 site each other ; the right foot is advanced about 

 three times its length ; the left foot placed about one 

 length in front of it ; the arms are again moved ; the 

 right foot again advanced about three lengths for- 

 ward of the left ; and the left again brought about 

 one length in front of it. The same animal does 

 not always use the same foot to make the long 

 stride. It will be seen by this that each foot moves 



