An obvious division can be made between characters etched or pecked and those painted without incision. This division in execution coincides to a certain extent with geographic areas. So far as ascertained, painted characters prevail perhaps exclusively throughout Southern California, west and southwest of the Sierra Nevada. Pictures, either painted or incised, are found in perhaps equal frequency in the area extending eastward from the Colorado River to Georgia, northward into West Virginia, and in general along the course of the Mississippi River. In some cases the glyphs are both incised and painted. The remaining parts of the United States show rock-etchings almost exclusive of paintings. It is proposed with the accumulation of information to portray the localities of these records upon a chart accompanied by a full descriptive text. In such chart will be designated their relative frequency, size, height, position, color, age, and other particulars regarded as important. With such chart and list the classification and determination now merely indicated may become thorough. In the present paper a few only of the more important localities will be mentioned; generally those which are referred to under several appropriate heads in various parts of the paper. Notices of some of these have been published; but many of them are publicly mentioned for the first time in this paper, knowledge respecting them having been obtained by the personal researches of the officers of the Bureau of Ethnology, or by their correspondents. NORTHEASTERN ROCK CARVINGS. A large number of known and described pictographs on rocks occur in that portion of the United States and Canada at one time in the possession of the several tribes constituting the Algonkian linguistic stock. This is particularly noticeable throughout the country of the great lakes, and the Northern, Middle, and New England States. The voluminous discussion upon the Dighton Rock, Massachusetts, inscription, renders it impossible wholly to neglect it. The following description, taken from Schoolcraft’s History, Condition, and Prospect of the Indian Tribes of the United States, Vol. IV, p. 119, which is accompanied with a plate, is, however, sufficient. It is merely a type of Algonkin rock-carving, not so interesting as many others: