Oldenburg, [484].

Old World, fire-drill, fire altar, sacred fire, oil press, millstone, axial rotation, etc., [494-504];

civilizations compared with New World, [504-609], [525];

summary and conclusions, [544].

Oliva, Padre Anello, [132], [150], [154], [156], [157], [164].

Oliver, G., [484], [485].

Ollin, in Calendar-stone, [12], [13], [14], [15], [54]

(see also [Nahuiollin]).

Olmos, Friar Andreas de, [54], [189], [190], [195].