Hrdlicka. 



51 



white and colored children, the data obtained on 100 additional 

 colored children, obtained in the New York Colored Orphan Asy- 

 lum, we obtain the following proportions: 



Average Chest Index of the Children, According to the Color, Sexes and 

 Ages, including the 100 Additional Children, from the N. Y, Colored 

 Orphan Asylum. 



Measurements of the Head. 



The principal diameters of the head differ largely according to 

 the nationalities of the children and even in individuals. The main 

 value of such dimensions of the head as the anterio-posterior or the 

 lateral maximum diameters, and the height, lies in the correlation of 

 same and in the resulting indices. The main value of the tables 

 which show the individual measures, consists in the possibility of 

 tracing the proportions of increase in these measures with the ages 

 of the children, and then they show the differences in the averages 

 between the males and the females, and between the white and the 

 colored children. 



The cephalic indices of the principal groups of the children in the 

 asylum were already given at the end of the first part of these inves- 

 tigations. I add here the average indices calculated from age to age 

 on all the children. These figures show the changes of the cephalic 

 index with age. The relations of the length and of the width to 

 the height of the head show nothing very extraordinary and as they 

 would involve much additional technicalities, they will not be intro- 

 duced here. 



