Another lava boulder similarly incised found in the parish of San Miguel is pronounced by Mr Squier, from the examination of a drawing, to resemble stones seen by him in other parts of Central America. I copy Seemann's cuts of several of the characters.[II-4] The second class includes a few stone columns, some of them ten or twelve feet high, found at David and in Veragua as well. These seem never to have been seen in situ, but scattered and sometimes used for building purposes by the present inhabitants. Their peculiarity is that the characters engraved on their surface are entirely different from those of the Piedra Pintal, being smaller and cut in low relief. Drawings of these possibly hieroglyphic signs, by which to compare them with those of Copan, Palenque, and Yucatan, are not extant. The third class comprises the _huacas_, or tombs, a large number of which have been opened, and a variety of deposited articles brought to light. The tombs themselves are of two kinds. Those of the first kind are mere pebble-heaps, or mounds, three or four feet high, and the only articles taken from them are three-legged stones for grinding corn, known in all Spanish America as _metates_. The other graves have rude boxes or coffins of flat stones, with, in a few instances, rude stone posts several feet in height. Graves of this class are found to contain golden ornaments, with trinkets and implements of stone and burned clay. In most of them no traces of human remains are met; and when human bones do occur, they usually crumble to dust on exposure to the air, one skull, however, described as broad in the middle and flat behind, having been secured, and a plaster cast exhibited to the American Ethnological Society.[II-5] [Sidenote: POTTERY OF CHIRIQUÍ.]