Yucay, [247].

Yuma language, [426].

Yuncas, [227];

grammar of, [280].

Yupanqui, Inca, his portrait, [228];

in power, [230];

called Pachacutec, [230].

Zaborowski, L’homme préhistorique, [412].

Zacatecas, [183].

Zach, Correspondenz, [41].