ANATOMICAL STRUCTURE OF ANTHROPOID APES. 209 



altogether rare in man. Bischoff and others have 

 justly maintained that the resemblance to man which 

 is found in these animals in the arrangement of the 

 heart and larger blood-vessels appears to be con- 

 nected with their mode of life. For although their 

 habits are arboreal, this very fact implies that they 

 are for the most part in an upright position. 



The divi^on of the femoral arteries displays a 

 somewhat interesting deviation from the normal 

 human type. High up near the femoral arch an 

 artery, accompanied by veins and a large nerve, 

 diverges from the femoral artery, which extends, 

 together with its accompanying parts, as far as the 

 back of the foot. In the gorilla this branch pierces 

 the sartorius. 



