There is a strong- probability that on the civilization of the Aztecs was either of direct Mongolian derivati . ntations transpla an .Mongoli early or partiallv a development from This view is sustained, first, by certain superficial resemblances, and, of second by various details in old Chinese manuscripts suggesti.veThe former intercourse with the shores of Mexico and South America as a wanbelief that man's initial appearance on this hemisphereof was the very near derer from Asia finds plausible support in the fact beapproach of the American land mass to Asia at the north, the two a continuous chain of steppingin- separated bv a narrow strait, whilecoast Accepting not far below. stone islands reaches from coast to the orders, lower the from n evolutio man's of theory an the Darwini idea of his indigenous growth in America seems to be precluded; for no traces have been found of the existence at any time of his proximate ancestors-- the higher species of apes, from which alone he could have come, having no representatives here in the remains of bygone times. The question of man's relative antiquity on the Western hemisphere is also a matter of pure speculation. Here again the absence of all written records prevents any assured historical reckonings backward.d \ncient remains, including those of the Aztecs and their associate races, the cliff-dwellers of Arizona and the mound-builders of the Ohio and Mississippi valleys, are abundant and highly interesting, but their time connections are lacking. Yet while the aspects of the World are most unsatispurely historical progress of man in the New attended by much more factory, anthropological studies proper are favorable conditions in the Americas than in Europe. In the Old World, occcupied and thickly settled for many historic ages by man in the various stages of civilized development, most of the vestiges of prehistoric man have been destroyed by the people; whereas these still have widespread existence in the New. in the immediate section of the country to which the County of Westchester belongs such traces of the ancient inhabitants as have boon found are in no manner reducible to system.