XIII 



BONES AND JOINTS 



181 



bones are too weak to bear up the weight of the body 

 and therefore become bent, resulting in "bowlegs." 

 Every healthy child will learn to walk soon enough if 

 left to take his own time. 



Many young persons form the bad habit of standing 

 on one foot, sitting bent over, walking in a careless, 



J 



Correct. More restful. Very improper. 



FIG. 97. Postures in standing. (From Shaw's " School Hygiene." ) 



indifferent manner, and sleeping with the head on a 

 thick pillow. By doing these things habitually the 

 growing bones of the young become hopelessly deformed. 

 We all admire the straight back, the square shoulders, 

 the full chest, and the graceful gait. They are the 

 result of easy and natural positions of the body in lying, 

 sitting, standing, and walking. 



