STRUCTURE OF THE HUMAN BODY SKELETON. 7 



The Red Race comprises the American savages generally called 

 (but incorrectly) American Indians ; their skin has a reddish 

 hue, their hair is black and straight, as in the yellow race, but 

 they have neither oblique eyes nor a flattened nose. They are, 

 for the most part, warlike nations who live by the chase. 



Lastly, the Black Race, the most miserable of all, inhabits the 

 whole of Central Africa, and a great part of the islands of 

 Oceania. The skin of the negroes is entirely black, their nose 

 flattened, their lips thick, and their hair woolly. They live in 

 small scattered tribes, cannot write, and live by the chase. They 

 hunt with bow and arrows, and can only build huts, while 

 the other races, even the red race of America, have been able 

 to raise monuments, and to make great roads. 



STRUCTURE OF THE HUMAN BODY, 



SKELETON. The body of man is supported by a solid frame- 

 work called the Skeleton, The parts which compose it are 

 called bones, of which there are a great number, especially in the 

 hands and feet. The head is also composed of several small 

 bones, but they are all soldered together, except the lower jaw, 

 which is movable. They form a great cavity which contains 

 the brains. The skull has also two deep hollows in front, which 

 contain the eyes, and which are called orbits, 



In man the lower jaw is formed of a single bone, while it is 

 composed of two parts in the sheep, ox, and a great many 

 other animals. 



When we examine a human skeleton (in which there is 

 absolutely nothing alarming), we see that the head is supported 

 by a sort of column formed of massive little bones arranged one 

 upon another. These small bones are called vertebra, and 

 collectively the vertebral column. It is sometimes called the spine, 

 or back-bone. All the vertebrae are pierced with a hole from 

 above to below. These holes correspond to each other .qnd form 

 a kind of canal which itself corresponds to the hole a .he base 



