Henry Gannett,
Encyclopædia Britannica, Ninth Edition
(1881)
“ Nevertheless language forms on the whole perhaps the most convenient basis of classification, and without its aid it would have been impossible to determine the affinities of many wide-spread races, such, for instance, as that of the Arizona Apaches with the Canadian Chippewyans, or on the other hand to separate nations apparently closely related, like the Iroquois from their Algonquin neighbours, or the Araucanians from the Peruvians. The true relations of many tribes are, on the other hand, still doubtful, because of uncertainty regarding the languages they speak. ”
