128 



BUREAU OF AMERICAN ETHNOLOGY 



[BULL. 34 



Menstruation {commencing days) of Mohave girls, at Fort Mohave school, in the first 



half of 1901 



As to changes in the form of the body, it was observed among the 

 nonciviUzed tribes that, for several years after puberty, up to the 

 apparent age of from 15 to 17, the bodies of the girls remain lithe and 

 of somewhat masculine form, with small legs and thighs, small pelvises 

 and in general with but little development of adipose tissue. Above 

 18 years the women are generally married, and often mothers, and the 

 feminine characters of the body approach more closely those in aver- 

 age white women of similar age. Among the more civilized tribes, 

 particularly on United States Indian reservations and in schools, the 

 girls often begin to grow stout and rather shapeless soon after puberty. 

 The Pima offer here a good example. 



Adolescence in male; heard. — The male adolescent shows generally 

 fair development of musculature, symmetry and plasticity of form, 



