in Plato's and Inca's scheme of state, [539];

in Constantine's plan, and in Maya and Mexican calendars, [542], [543];

analogies and divergences, American divisions agree with Greek but differ from Chinese, [546].

Nutt, David, [451].

Nuttall, Zelia, work on the Atlatl, [34];

on the Mexican Calendar system, [7], [53], [244-247].

Obsidian mirror

(see [“Mirror”]).

Ocelot, Tezcatlipoca took shape of, [8];