HRDLICKA] 



PHYSIOLOGICAL AND MEDICAL OBSERVATIONS 



101 



Approximation of age. — For the sake of brevity and facility of ref- 

 erence, classification by stature and the probable corresponding ages 

 of the Indian chiklren are given in the following table, in precedence 

 of other data. The estimates are based on the records obtained of 

 children of the same tribes of known age, and on Bowditch's and 

 Quetelet's measurements of whites; it may be added they are doubt- 

 less imperfect. 



Approxiviations of age to stature among Apache and Fiina children 



Pulse, respiration, and temperature. — Pulse in relation to stature: 

 The next table gives the average pulse rates by stature as collected 

 by Volkmann for whites, and the average, the slowest, and the most 

 rapid pulse in corresponding groups of the Indians ; « and plate xiii 

 shows in a graphic manner the changes in pulse rate with age among 

 the Indians. 



Pulse rate in relation to stature 



a The examinations of all the c'nildren were conducted in an inside porch or room of the schools, during 

 January to March, the weather being rather rainy and the outside day temperature ranging from about 

 45° to 80° F., the average being slightly less in the region occupied by the Apache than it is in the 

 Pima country. 



iVolkmann, A. W., Die Haemodynamik nach Versuchen, 1850, 431; also in Vierordt's Anatom., etc., 

 Baten iind Tabellen, 2d ed., Jena, 1893, 153; the groups in the original are 70-80, 80-90, etc, hence very 

 nearly identical with the above. 



