HRDucKA] THYSIOLOGICAL AND MEDICAL OBSERVATIONS 



Height {sitting) supra ischia in relation to stature 



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The height of the Apache above the ischia, it is seen, exceeds that 

 of the Pima in both sexes and in most of the stature groups, but the 

 differences are too small to be of much importance. It is difficult 

 to account for this peculiarity, which extends to the adults; it is 

 possibly connected with former differences in nutrition in the two 

 tribes, which were in favor of the Pima. The tliickness of clothing 

 worn by the school children was practically the same, and a like 

 statement may be made regarding the conditions under which the 

 measurements were taken. 



Rate of increase of height- above ischia for each 10 cm. increase in stature 



There is noticeable slowness in growth of the upper part of the body 

 in all divisions between the heights of 130 and 139.9 cm.; there is a 

 period of relatively rapid growth from 140 to 159.9 cm. of stature in 

 the females and from 150 to 169.9 cm. in the males; then a decrease, 

 particularly in the females, is again apparent. 



The percentage of the height supra ischia to the total height, as 

 shown by the accompanying figures, diminishes in both sexes and in 

 all the groups up to the stature of 150 cm., corresponding to about 14 

 years of age, a condition which points to a relative preponderance up 

 to that age of the growth of the lower limbs. Thereafter the upper 

 part of the body shows in most of the groups a slight augmentation in 

 its relation to the whole stature, in other words a condition which 

 3452— Bull. 34— OS 8 



