54 



Anthropological Investigations. 



Average Cephalic Index of the Children According to Color, Sexes 



and Ages. 



The relative size and growth of the head can be illustrated in 

 addition by the measure of the circumference of the head and by 

 the so-called Smith's Module. 



The circumference of the head is not a very favored measure in 

 anthropology. The reasons for this are that it is often interfered 

 with by the amount of hair of the individual measured, and that it 

 has no relation to the height of the head, which may differ very 

 widely. In children, where the height of the head does not differ as 

 much as it does in adults, and where the hair forms but a very little 

 obstacle to measuring, the circumference is a fairly valid measure. 

 It shows by all means the gradual increase of the head with age of 

 the children, and the differences in the size of the head among the 

 different classes of children. 



