CHAPTER V 



PHYSICAL, SOCIAL, AND MENTAL QUALITIES 



Physically, the chimpanzee, as we have seen, 

 closely resembles man, but there are certain points 

 that have not been mentioned in which he differs 

 from him, also from other apes. We may here take 

 note of a few of those points. 



The model and structure of the ear of this ape are 

 somewhat the same as those of man, but the organ is 

 larger in size, and thinner in proportion. It is very 

 sensitive to sound, but dull to the - touch, indicating 

 that the surface is not well provided with nerves. 

 He cannot move it as other animals move theirs by 

 the use of the muscles at its base, but, like the 

 human ear, it is quite fixed and helpless in this 

 respect. 



The hand of the chimpanzee is long and narrow. 

 The finger bones are longer, in proportion to their 

 size, than those of the human hand, and slightly 

 more curved in the plane of the digits. One thing 

 peculiar in the hand of the chimpanzee, is that the 

 tendons inside of the hand, which are called the 

 flexors, and designed to close the fingers, are shorter 

 than the line of the bones, and on this account the 



