NO. 17 SMITHSONIAN EXPLORATIONS, 1916 93 
made by the Government authorities, as well as by the opposing 
interests, to obtain a satisfactory genealogy of each Indian concerned, 
only to reach the conviction that such data could not be relied on 
to establish beyond legal doubt the full-bloodedness of any individual. 
It was at this point that anthropology was appealed to, and the 
writer was intrusted with the examination of the White Earth 
Chippewa who claimed to be or were regarded as full-bloods, with 
the view of passing on their blood status. There were about 800 such 
Fic. 98.—Two Sioux school girls, Standing Rock. 
persons, 696 of whom were actually examined and their status 
determined. 
In order to be fully prepared for this important work and to test 
certain new reactions bearing on the question of full-bloodedness of 
Indians, a most profitable month was spent among the Sioux along 
the Missouri, and some time was given also to the outlying parts of 
the Chippewa territory. This gave on one hand the opportunity 
to examine a good series of men and women among both tribes for 
anthropological purposes, while the additional experience gained 
