NO. I THE IIYPOTROCHANTERIC FOSSA HRDLICKA 33 



Hypotrochanteric Fossa and Race, Both Sexes and Both Sides, Adults 



Group and no. of femora 



None 



Small 



but 



distinct 



Mod- 

 erate 



Medium 



Above 

 medium 



Pro- 

 nounced 



Of 

 which 



fossa - 

 groove 



U. S. Whites 

 (1,000) . . . 



U. S. Negroes 

 (100) 



Old Egyptians 

 (200) 



Old Peruvians 



N. A. Indians 

 (3-890) 



Kodiaks, pre- Aleut 



(154) 



Aleuts (137). . 

 Eskimos (718) 



Chinese (Canton) 

 (152) 



Percent 

 32.- 



31- 



20.5 



24.4 



12.2 



15 6 



II. 7 

 10.4 



38.8 



Percent 

 18.2 



16- 



12.5 



13-7 



19 5 



29.2 

 15 3 

 18.7 



21 . I 



Percent 

 20.- 



23- 



25- 



36.5 



32 .2 



21.4 

 16.1 

 24.1 



17. I 



Percent 

 15-8 



18 - 



16.6 



20. 7 



21.4 

 27.- 

 22.3 



138 



Percent 

 II .2 



17 - 



17 - 

 7.6 



13-3 



7.8 

 27- 

 19 5 



7 9 



Percent 

 2.6 



2.- 



3 - 

 0.9 



15 



3-2 



1-5 

 3 3 



1-3 



Percent 

 0.2 



0.6 



1-3 

 15 



I .2 



Percent 



(r.8) 

 (3--) 

 (5--) 

 (o.i) 

 (2.1) 

 (0.6) 



(3-2) 

 (3-9) 



There are, it is seen, numerous and in some cases marked differ- 

 ences both in the frequency and the development of the fossa. To 

 render these still more obvious, the data may be condensed, as has been 

 done for adolescents, and arranged on the basis of the combined w^eight 

 of the last two columns : 



Hypotrochanteric Fossa and Race, Both Sexes, Both Sides, Adults (Condensed) 



Group and no. of femora 



Chinese (152). 

 Old Peruvians 



U. S. Whites (1,000) 



U. S. Negroes (100) 



Kodiaks, pre- Aleut (154). 

 N. A. Indians (3,890). . . . 



Old Egyptians (200) 



Eskimos (718) 



Aleuts (137) 



