MAN AND APES. 171 



compared with that of the hand, and the near 

 approach made by the length of the " great 

 toe' to the actually longest toe of the foot. 

 In the typical genus Lemur we find the 

 proportion (in length) of the thigh-bone to the 



upper arm-bone most human, as well as that 

 of the longest toe to the back-bone. In the 

 Slow Lemur (Nt/ctlcebus), the length of the 

 shin-bone bears a relation to that of the thigh- 

 bone more human than in any other species 

 below man, while in other kinds of Half-apes 

 we meet with a development of the anterior 

 inferior spinous process of the ilium more 

 like that of man than we find in any ape ; 

 also upper grinding teeth furnished with the 

 "oblique ridge " as in man, and sometimes an 

 almost equality of vertical development in the 

 teeth, and even an absence of any diastema. 



Having completed our survey and summary 

 of the structural resemblances and differences 

 presented by the different forms of Primates, 

 we may now consider and endeavour to 

 appraise their value, as bearing upon the 



