later that this place seems to be connected with the early history of certain Maya tribes whose migration legends have been preserved. Indeed it seems bound up with the mythical history of all the tribes of Mexico and the greater part of Central America, with one striking exception, the Zapotec, and as such must belong to an earlier movement of tribes than the actual Aztec migration from Aztlan. The Nahua-speaking tribes, including the Toltec, and the Michoacans, called themselves Chichimec, a term which, as mentioned above, possesses rather a cultural than a racial significance, and means wandering hunters. In fact the Aztec are shown in manuscripts as skin-clad archers on their migration, fighting with the inhabitants of the valley, who are represented as dressed in textiles and armed with the macquauitl, or wooden sword edged with obsidian. The first inroad of Chichimec after the destruction of Tulan (though no doubt that destruction was caused, at any rate in part, by the pressure of nomadic tribes from the north), is said to have taken place under the leadership of a chief called Xolotl, coming from a country named Amaquemacan _via_ Chicomoztoc and Tulan. Xolotl established his court at Tenayocan, and proceeded to extend his power over the other cities round the lake, incorporating such of the Toltec as remained in his empire. Shortly after, another influx of Chichimec took place, under three chiefs, Acolhuatzin, whose immediate followers called themselves Tepanec, Chiconquauhtli, leading a band of Otomi, and Tzontecomatl, chief of the Acolhua (in the narrower sense). These chiefs allied themselves with Xolotl, and the first two were given his two daughters in marriage, receiving at the same time the towns of Azcapotzalco and Xaltocan respectively as residences. Tzontecomatl married a woman from Chalco and established himself at Coatlichan. Colhuacan at this time was ruled by Pochotl, a descendant of the last Toltec king, and Xolotl seems to have exercised a loose suzerainty over all. The invaders rapidly adopted the remains of civilization which they found in the valley, and applied themselves to agriculture; the old name of Chichimec was dropped, and that of Acolhua, in the wider sense, was adopted. From this point historical tradition has been so well reduced to order by Clavigero, whose work, translated into English, is still easily accessible, that I do not propose to give more than a mere summary of events. A list of the various “kings,” together with approximate dates which I suggest after a careful comparison of many sources, is given in Appendix III. The principal point to be noted is the transfer of the political centre from Tenayocan to Tezcoco, which took place in the reign of Xolotl’s third successor, Quinatzin, who removed his “court” thither; from this point dates what may be termed the “Acolhuan” domination of the Mexican valley. Meanwhile the Aztec had arrived, but being the latest of the migrants they were