The characteristic features of their religious systems had as little resemblance to each other. The whole Aztec pantheon partook more or less of the sanguinary spirit of the terrible war-god who presided over it, and their frivolous ceremonial almost always terminated with human sacrifice and cannibal orgies. But the rites of the Peruvians were of a more innocent cast, as they tended to a more spiritual worship. For the worship of the Creator is most nearly approached by that of the heavenly bodies, which, as they revolve in their bright orbits, seem to be the most glorious symbols of his beneficence and power. In the minuter mechanical arts, both showed considerable skill; but in the construction of important public works, of roads, aqueducts, canals, and in agriculture in all its details, the Peruvians were much superior. Strange that they should have fallen so far below their rivals in their efforts after a higher intellectual culture, in astronomical science, more especially, and in the art of communicating thought by visible symbols. When we consider the greater refinement of the Incas, their inferiority to the Aztecs in these particulars can be explained only by the fact, that the latter in all probability were indebted for their science to the race who preceded them in the land,--that shadowy race whose origin and whose end are alike veiled from the eye of the inquirer, but who possibly may have sought a refuge from their ferocious invaders in those regions of Central America the architectural remains of which now supply us with the most pleasing monuments of Indian civilization. It is with this more polished race, to whom the Peruvians seem to have borne some resemblance in their mental and moral organization, that they should be compared. Had the empire of the Incas been permitted to extend itself with the rapid strides with which it was advancing at the period of the Spanish conquest, the two races might have come into conflict, or, perhaps, into alliance with one another. The Mexicans and Peruvians, so different in the character of their peculiar civilization, were, it seems probable, ignorant of each other's existence; and it may appear singular, that, during the simultaneous continuance of their empires, some of the seeds of science and of art, which pass so imperceptibly from one people to another, should not have found their way across the interval which separated the two nations. They furnish an interesting example of the opposite directions which the human mind may take in its struggle to emerge from darkness into the light of civilization,