88 



BUREAU OF AMERICAN ETHNOLOGY 



[BULL. 34 



obstacle of a frequent lack of proper age records was met with, par- 

 ticularly with older children, and this necessitated a division of the 

 subjects studied into two series, one in which the age could be and the 

 other in which it could not be accurately ascertained. The series in 

 which the age was known is restricted to 54 Apache and 80 Pima 

 children of both sexes, mostly infants, while the group in which the 

 age was more or less uncertain embraces 392 Apache and 310 Pima, 

 nearly all school children, ranging from the earliest school age to late 

 adolescence. Owing to differences in the stage of development, the 

 points of inquiry differed a little in the two series. In the first series 

 they were height, pulse, respiration, dentition, sitting, standing, walk- 

 ing, speaking, nursing, and food ; in the second series, height, weight, 

 principal head and face dimensions, pulse, respiration and tempera- 

 ture, dentition, manual strength, puberty (in girls), and the appear- 

 ance of beard. The results of the investigations follow. 



Children of Known Age 



Height. — Owing to the sensibilities of the mothers, it was not con- 

 venient to measure the length of any of the infants under 1 year of 

 age, and among the Apache there were difficulties even with the 

 older cliildren at home. The table below gives the data secured, and 

 also similar observations on white children for purposes of comparison 

 (those of Bowditch are on children of American parentage). 



Average height, in centimeters. 



"Landois and Stirling, Human Phy.siology, 4th ed., Philadelphia, 1892, 

 ?>Daffner, F., Das VVaehstiiin des Menschen, 2d ed., Leipzig, 1902, 323. 



