... proportions of the head and body, the latter of which have already been discussed. Great interest attaches also to the relative proportions of the different dimensions of the head and especially to the cephalic index obtained by multiplying the maximum breadth by 100 and dividing by the maximum length. Heads with an index of 75 or under are called dolichocephalic; those between 75 and 80, mesaticephalic; and those over 80 brachycephalic. ... — Negritos of Zambales • William Allan Reed
... are quite the same. One half the orang- utans are of the thin-headed, pin-headed type that is hopeless for stage training. The good ones are the stocky, round-headed, round- faced individuals who have the cephalic index of the statesman or jurist, and a broad and well-rounded ... — The Minds and Manners of Wild Animals • William T. Hornaday
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