the ceramic art of the Huaxtec and Totonac. Foundation-mounds occur throughout the whole region from the mouth of the Panuco to Vera Cruz, and afford a splendid field to future explorers. The Panuco district shows abundant traces of settlement from very early times; the mounds are of earth, sometimes faced with cut stone, but traces of walls are rare throughout the whole of the Huaxtec region. In the Cerro de Nahuatlan, the pyramids are again of earth or rubble, faced with more or less regularly squared sandstone blocks; some are circular in ground-plan, and the corners of the rectangular ruins are often formed of well worked monoliths. At Papantla is a remarkable pyramid, faced with cut stone, the distinguishing feature of which is constituted by a series of niches, which may at some time have contained images. 'This is figured on Pl. XVI, and further description is unnecessary, though it may be said that niches of this character may be found to be a characteristic of Totonac architecture.
In the neighbourhood of Cempoala a very interesting series of ruins is to be found. 'These consist of mounds on which traces of buildings remain, and which, owing to the lack of stone suitable for building in the district, are constructed of a core of water-worn stones set in concrete with good concrete facing. The highly polished concrete facing of Totonac buildings attracted the notice of the Spaniards, who thought at first that they were ornamented with silver plates. The mounds are either of the normal step-pyramid type, or are built in two very distinct tiers, each with a separate balustraded stairway, of the types Fig. 73, c and e; p. 321. Both are erected on slightly-raised artificial bases, and the buildings found on the summits are rather more complicated than the simple shrines believed to be characteristic of the Aztec temples. In this respect they bear a closer resemblance to certain of the Maya remains which will be described later. One of these
