Izamal, ruins of, [214], [217].

Iz-calli, Mexican 20-day period, [240];

festival of “renovation,” [241].

Iztaccihuatl, giant volcano, [275].

Jade, Nahuatl word for, chalchiuitl, [34], [81];

symbol of;

emblem of water goddess, [91];

placed with dead of upper class in Mexico, [195];

jade celts from Nicaragua, [196];

ancient name for pyramid of Cholula, “the monument or precious jade stone of the Toltecs, etc.,” [269];