368 



THE HUMAN MACHINE 



STORY TEST 



AGNES TELLS How TO TAKE CARE OF THE SKIN 

 Read carefully and critically. List all the errors and suggest corrections. 



Every girl likes to have a good complexion. Most people think 

 that unscented soap and water are best, but I like to use scented 

 soap and face powder. The powder keeps dirt out of the pores 

 and gives color to the skin. A touch of rouge is also attractive 

 and makes the skin healthy, because it also keeps dirt out of the 

 pores. The hair can be kept in good condition by frequent brush- 

 ing as this spreads the oil from the glands at base of the hair over 

 the surface of the hair. It is not good to allow cold water to touch 

 the skin as this is apt to chill it and then we take cold. 



PROBLEM III. HOW DOES THE BODY MOVE? 



The Skeleton and Muscles. Have you ever thought of 

 what the skeleton does for your body? You may have 

 seen a jellyfish or some other animal that has no skeleton 

 either inside or outside of its body. A jellyfish thrown 

 up on the beach has no definite form. It is only when 

 the water supports it that it has its beautiful shape. 

 Without a skeleton our bodies would sink into a shapeless 

 mass, for we are over 65 per cent water. The skeleton 

 gives attachment to the muscles, thus aiding in movement. 

 Study the diagram on page 369 carefully. You will notice 



that instead of 

 being all in one 

 piece, the skele- 

 ton is made of 

 many bones and 

 that those used 

 for movement 

 are jointed. 

 The skeleton 

 protects the 

 delicate parts of 



.cottar- bone 



op forearm 



Why can the arm lift a weight ? Read through the entire 

 problem before you attempt an answer. 



