_Tiverton rocks_ [op. cit. _d_].--Their situation may be thus known: by tracing along the east side of the map of Rhode Island until you strike Tiverton, and then following along to the southwest extremity of that town, the Indian name Puncoteast, also the English names Almy and High Hill, will be seen. The inscriptions are on masses of Graywacke. * * * We can only state they were occupied with some kind of characters. These two inscriptions are pictured, op. cit., Table XIII. SOUTH DAKOTA. Mr. T. H. Lewis (_c_), gives a description of Fig. 79 as follows: This bowlder is on a high terrace on the west side of the Minnesota river, 1-1/2 miles south of Browns valley, and is in Roberts county, South Dakota. It is oblong in form, being 3-1/2 feet in length, 2 feet in width, and is firmly imbedded in the ground. Of the characters _a_ and _b_ are undoubtedly tortoises; _c_ is probably intended to represent a bird track; _d_ represents a man, and is similar to the one at Browns valley, Minnesota, [Fig. 51, supra;] _e_ is a nondescript of unusual form; _f_ is apparently intended to represent a headless bird, in that respect greatly resembling certain earthen effigies in the regions to the southeast. The figures are about one-fourth of an inch in depth and very smooth, excepting along their edges, which roughness is caused by a slight unevenness of the surface of the bowlder. The same authority, op. cit., describes Fig. 79, _g_. [Illustration: FIG. 79.--Petroglyphs in Roberts county, South Dakota.] This bowlder, 4 miles northwest of Browns valley, Minnesota, is in Roberts county, South Dakota. The figures here represented are roughly pecked into the stone, and were never finished; for the grooves that form the pictograph on other bowlders in this region have been rubbed until they are perfectly smooth. The face of the bowlder upon which these occur is about 2 feet long and 1-1/2 feet in width. TENNESSEE. Mr. John Haywood (_a_) gives the following account: