HRDLICKA] PHYSIOLOGICAL AND MEDICAL OBtiERVATIONS 



Force in Pima girls contrasted uilh that in Apache girls 



111 



Stature. 



120 to 129.9 cm 

 130 to 139.9 em 

 140 to 149.9 cm 

 150 to 159.9 cm 



Average 

 deficiency 

 in Pima 

 girls in 

 traction. 



kg. 



-0.7 

 -1.5 

 -3.5 

 -3.1 



The sex differences in both tribes under consideration are pro- 

 nounced, particularly between the taller o^irls and the youns; men of 

 corresponding size. 



Another class of observations of value which, were there suffident 

 data on other children, would make possible very interesting com- 

 parisons, is on the pressure force of the hands and the arms with 

 relation to the weight of the body. Dividing each of the force records 

 by the weight gives the fraction of kilogram of the former to each 

 kilogram of the latter. The average results of this class obtained 

 from the data on the Indian children examined by the writer are 

 given in the succeeding table, and in the curves to be found on plates 

 XV and xvi). 



Average force, in grams, for each kilogram of -weight, in the frinci-pal stature groups 



APACHE 



PIMA 



120 to 129.9 cm. 

 130 to 139.9 cm. 

 140 to 149.9 cm. 

 150 to 159.9 cm. 

 160 to 169.9 cm. 

 170 to 179.9 cm. 



53 



73 



135 



215 



271 



The main features brought out by these force-weight comparisons 

 (pis. XV, xvi) are much like those obtained by contrasting force 

 with stature. There are seen again the preponderance of male over 

 female and the somewhat greater strength of the Apache of both 



