Fig. 45 is a reproduction of Prof. Frazer’s illustration.

This region was also referred to by Dr. Charles Rau (a), his cut from the specimen in the collection of the Smithsonian Institution (Mus. No. 39010) being here reproduced as Fig. 46.

Fig. 46.—Slab from Bald Friar rock, Maryland.

During the autumn of the years 1888 and 1889 Dr. Hoffman visited these rocks, securing sketches and measurements, the former of which are reproduced in Figs. 47 and 48. The figures are deeply cut, as if rubbed down with sand and a round stick of green wood. The deepest channels, varying from three-fourths to 1¼ inches across and almost as deep as they are wide, appear as if cut out with a gouge, and for this reason bear a strong resemblance to the petroglyphs in Owens valley, California. In whatever manner these sculpturings were made, it is evident that much time and great labor were expended upon them, as this variety of rock, locally termed “Nigger-head,” is extremely hard.

Fig. 47.—Top of Bald Friar rock, Maryland.

Fig. 45 represents a bird’s-eye view of the top of the rock, bearing the greater amount of workmanship. The petroglyphs cover a surface measuring about 5 feet by 4 feet 6 inches. The extreme ends of the figures extend beyond the irregular horizontal surface and project over the rounded edge of the rock, so that the line, at the left-hand lower part of the illustration, dips at an angle of about 45°. The two short lines at the extreme right are upon the side of the upper edge of the rock, where the surface inclines at an angle of 30°.

Some of the figures are indefinite, which is readily accounted for by the fact that the rock is in the river, a considerable distance from shore, and annually subjected to freshets and to erosion by floating logs and drift material. The characters at the right end of the upper row resemble those near Washington, Lancaster county, Pennsylvania. (See Fig. [73].)