I found hundreds of these bowlders covered with rude figures of men, animals, and other objects of grotesque forms, all pecked in with a sharp instrument. Many of them, however, were so much defaced by long exposure to the weather and by subsequent markings, that it was impossible to make them out. Among these rocks I found several which contained sculptures on the lower side, in such a position that it would be impossible to cut them where they then lay. Some weighed many tons each and would have required immense labor to place them there, and that, too, without an apparent object. The natural inference was that they had fallen down from the summit of the mountain after the sculptures were made on them. A few only seemed recent; the others bore the marks of great antiquity. In the collections of the Bureau of Ethnology is an album or sketch book, which contains many drawings made by Mr. F. S. Dellenbaugh, from which the following sketches of petroglyphs in Arizona are selected, together with the brief references attached to each sheet. Fig. 9 is a copy of characters appearing in Shinumo canyon, Arizona. They are painted, the middle and right hand figures being red, the human form having a white mark upon the abdomen; the left-hand figure of a man is painted yellow, the two plumes being red. [Illustration: FIG. 9.--Petroglyph in Shinumo canyon, Arizona.] The petroglyphs in Fig. 10 are rather indistinct and were copied from the vertical wall of Mound canyon. The most conspicuous forms appear to be serpents. [Illustration: FIG. 10.--Petroglyph in Mound canyon, Arizona.] CALIFORNIA. In the foothills of California, wherever overhanging and rain-protected rocks occur, they are covered with paintings of various kinds made by Indians. Those on Rocky hill, some 15 miles east of Visalia, are especially interesting. The sheltered rocks are here covered with images of men, animals, and various inanimate objects, as well as curious figures. The paint used is red, black, and white, and wherever protected it has stood the ravages of time remarkably well. In many places the paintings are as vivid as the day they were laid on. Deer, antelope, coyotes, birds, and turtles are figured quite frequently, and may indicate either names of chiefs or tribes, or animals slain in the hunt. Here are also circles, spirals, crowns or bars, etc., signs the meaning of which is yet doubtful. Mr. H. W. Turner, in a letter dated June 3, 1891, furnishes sketches (Fig. 11) from this locality, and a description of them as follows: [Illustration: FIG. 11.--Petroglyphs near Visalia, California.]