286 



PHYSIOLOGY 



CHAP. 



The four curves shown in Fig. 121 represent the course of 

 growth in weight and height of boys and girls from 8 to 19 



Fio. 120. Curve of growth of man according to age and sex. (Pagliani.) 



Mal^s Females= 



o, weight ; 6, height ; c, vital capacity ; d, muscular strength. 



years of age, arranged according to whether they belong to poor 

 families or to those in comfortable circumstances. They 



