The Indians must surely be regarded as an entirely different stock from the Eskimos. On the other hand, the most competent American ethnologists are now pretty thoroughly agreed that all the aborigines south of the Eskimo region, all the way from Hudson's Bay to Cape Horn, belong to one and the same race. It was formerly supposed that the higher culture of the Aztecs, Mayas, and Peruvians must indicate that they were of different race from the more barbarous Algonquins and Dakotas; and a speculative necessity was felt for proving that, whatever may have been the case with the other American peoples, this higher culture at any rate must have been introduced within the historic period from the Old World.[19] This feeling was caused partly by the fact that, owing to crude and loosely-framed conceptions of the real points of difference between civilization and barbarism, this Central American culture was absurdly exaggerated. As the further study of the uncivilized parts of the world has led to more accurate and precise conceptions, this kind of speculative necessity has ceased to be felt. There is an increasing disposition among scholars to agree that the warrior of Anahuac and the shepherd of the Andes were just simply Indians, and that their culture was no less indigenous than that of the Cherokees or Mohawks. [Footnote 19: Illustrations may be found in plenty in the learned works of Brasseur de Bourbourg:--_Histoire des nations civilisees du Mexique et de l'Amerique centrale_, 4 vols., Paris, 1857-58; _Popol Vuh_, Paris, 1861; _Quatre lettres sur le Mexique_, Paris, 1868; _Le manuscrit Troano_, Paris, 1870, etc.] [Sidenote: Different senses in which the word "race" is used.]