Proportion of Indian and Other Blood

37. White

Columns 36, 37, 38. Proportions of Indian and other blood. ? If the Indian is a full-blood, write ?full? in column 36, and leave columns 37 and 38 blank. If the Indian is of mixed blood, write in columns 36, 37, and 38 the fractions which show the proportions of Indian and other blood, as (column 36, Indian) 3/4, (column 37, white) 1/4, and (column 38, negro) 0. For Indians of mixed blood all three columns should be filled, and the sum, in each case, should equal 1, as 1/2, 0, 1/2; 3/4, 1/4, 0; 3/4, 1/8, 1/8; etc. Whenever possible, the statement that an Indian is of full blood should be verified by inquiry of the older men of the tribe, as an Indian is sometimes of mixed blood without knowing it.