MAN A PRIMATE 15 



their bodies fitted to take hold of and move and 

 fashion and compel the universe around them, 

 that moment the life process was endowed with 

 the power of miracles. With the invention of 

 hands and arms commenced seriously that long 

 campaign against the tendencies of inanimate 

 nature which finds its most marvellous achieve- 

 ments in the sustained and triumphant operations 

 of human industry. None of the primates except- 

 ing man use their hind-limbs as a sole means of 

 changing their place in the universe, but in all of 

 them the fore-limbs are regularly used as organs 

 of manipulation. Man is a primate because his 

 fingers and toes, like those of other primates 

 (except the tiny marmosets of Brazil), end in 

 nails. Man has neither claws to burrow into the 

 earth, talons with which to hold and rend his 

 victims, nor hoofs to put thunder into his move- 

 ments. The human stomach, like that of all the 

 other primates, is a bagpipe. The stomach of the 

 carnivora is usually a simple sack, while rodents 

 have, as a rule, two stomachs, and ruminants 

 four. Man is a primate because his milk glands 

 are located on the breast and are two in number. 

 The mammary glands vary in number in the 

 different orders of mammals, from two in the 

 horse and whale to twenty-two in some insec- 

 tivora. Most ruminating animals have four, swine 

 ten, and carnivora generally six or eight. These 

 glands may be located in the region of the groin, 

 as in the horse and whale ; between the fore- 

 limbs, as in the elephant and bat ; or arranged in 



