Copan, lentil-shaped stone altar, from, [113];

carved stelæ, [215];

purpose of erection, [216];

study of the ruins, [219];

cult of Polaris illustrated by carved slab in temple, [11], [222];

numerical organization illustrated, [222];

numerical divisions, symbolism, etc., identical with those of Peru, Guatemala, Mexico, Yucatan, Zuñi, etc., [226], [228], [233];

numerical divisions on altar conform with Zuñi clan-organization, [229];

bearded effigies, [231];

dual rulers, [232];