28 



SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 92 



XII DYNASTY EGYPTIANS 



This material is from the deep rock shafts just to the south of the 

 ])yrami(l of Lisht and is identified as of about 2000 B. C. It includes 

 135 juvenile femora, which, as to the hypotrochanteric fossa, show 

 the following conditions : 



Hypotrochanteric Fossa in XII Dynasty Egyptians, Children and Adolescents 



The above data show the same progressive appearance and de- 

 velopment of the fossa as did the U. S. Whites and Negroes, but still 

 more strikingly. In the adolescents the fossa is nearly universal, and 

 in 40 percent of the femora of this stage of life it is markedly 

 developed. 



In 6 (17. 1 percent) of the adolescent bones the fossa is a marked 

 groove. This feature evidently is also one of later development, for 

 it is absent in the earlier stages of the growth period. 



PREHISTORIC PERUVIANS 



There are 114 pre-Columbian juvenile femora from Pachacamac 

 and Chicama, on the coast of Peru. They register thus : 



Hypotrochanteric Fossa in Prehistoric Peruvians, Children and Adolescents 



No. of femora 



Children (all, mostly 

 older) (35) 



Younger adolescents 

 (48) 



Older adolescents 

 (31) 



None 



Percent 

 28.6 



8.3 

 3-2 



Trace 



Percent 

 II. 4 



42 



Small 



but 



distinct 



Percent 

 II. 4 



8.3 



9 7 



Mod- 

 erate 



Percent 

 20.- 



10.4 



12.9 



Medium 



Percent 

 22.9 



313 

 35 5 



Above 

 medium 



Percent 

 2.9 



20.8 

 22.6 



Pro- 

 nounced 



Percent 

 2.9 



16.7 



16. I 



Of 

 which 



fossa- 

 groove 



Percent 



(2.9) 



(6.2) 



(65) 



