_Cochimi._ _Guaicuru._ _Seri._ _Yuma._ Man, uami, tama, éte, _pl._ ti, eketam, hamuk. Woman, wakoe, wuetu, anai, ekemam, hanya. Sun, ibo, ibunga, untairi, shaa, rahj, inyaa. Moon, gamma, isah, kilshia. Fire, usi, amak, aua. Water, kahal, ahj, aχ, aha. Head, agoppi, ihlit, ilta, Eye, ayibika, ito, ido. Ear, istla, ismahlka. Mouth, ahà, iten, ya-à. Nose, namu, ife, ihu. Tongue, ipχl, ehpelh. Teeth, itast, ehdoh. Hand, neganna, titshuketa, intlash, israhl. Foot, agannapa, itova, ime. House, ajihuenen, ambuja, aki, ava. 1, teguep, tashχo, sitik. 2, goguò, kamoe, ko-okχ, o’ak. 3, kombio, meakunju, ka-pka, hamok. 4, magacubugua, kshuχkua, hoba. 5, naganna teguep, ko-oχtom, harabk. The above vocabularies illustrate the extension of the Yuma stock to the southward. The Cochimi and Guaicuru are remote dialects, but of positive affinities. The Yuma words which I have added for comparison are principally from the Mohave dialect, and are taken from the vocabularies published by the “U. S. Geographical Surveys west of the 100th Meridian.” The Seri words are chiefly from the satisfactory vocabulary obtained by the late John Russell Bartlett. The relationship of the dialect to the Yuma stock is evident. DIALECTS OF THE UTO-AZTECAN STOCK.