Note VII-39 — Chapter VII · ANTIQUITIES OF OAJACA AND GUERRERO.

Charnay, p. 264, describes the material of this filling as 'terre battue, mêlée de gros cailloux.' His photographs of walls where the facing has fallen show in some places a mass of large irregular stones, even laid with some regularity in a few instances; in other parts of the ruins there seem to be very few stones, but only a mass of earth or clay; and in still other parts the wall has every appearance of regular adobes. Dupaix, p. 35, says that sand and lime are mixed with the earth. 'El macizo, ó grueso de las paredes se compone de una tierra mezclada y beneficiada con arena y cal.' 'De tierra preparada, hollada ó beneficiada cuando fresca y pastosa.' Tempsky, p. 251, declares the material to be rough boulders in cement. Humboldt, Vues, tom. ii., p. 283, speaks of 'une masse d'argile qui paroît remplir l'intérieur des murs.'