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];