Others have cut their initials or full names in these rocks, thus for an obscure record whose unriddling would award the antiquarian, substituting one, the correct deciphering of which leads to obscurity itself. At McCalls ferry, on the Susquehanna river, in Lancaster county, and on the right shore near the water’s edge, is a gray gneissoid flat rock, bearing petroglyphs that have been pecked upon the surface. It is irregular in shape, measuring about 3-1/2 by 4 feet in superficial area, upon which is a circle covering nearly the entire surface, in the middle of which is a smaller circle with a central point. On one side of the inner space, between the outer and inner circles, are a number of characters resembling human figures and others of unintelligible form. The petroglyph is represented in Fig. 72. [Illustration: FIG. 72.--Petroglyph at McCalls ferry, Pennsylvania.] The resemblance between these drawings and those on Dighton rock is to be noted, as well as that between both of them and some in Ohio. All those localities are within the area formerly occupied by tribes of the Algonquian stock. Near Washington, Lancaster county, Pennsylvania, on “Mill stream,” one-fourth of a mile above its junction with the Susquehanna river, is a large bowlder of gray sandstone (Fig. 73), the exposed portion of which bears several deeply incised lines which appear to have served as topographic indicators, as several others of like kind occur farther downstream. The longest incision is about 28 inches in length, the next one parallel to it, about 14 inches, while the third character is V-shaped, one arm of which is about 10 inches in length and the other 12. The apex of this character points in a southeast direction. [Illustration: FIG. 73.--Petroglyph near Washington, Pennsylvania.] One-eighth of a mile farther down is another bowlder, also near the water, which bears shorter lines than the preceding, but in general pointing almost southeast and northwest. The workmanship is similar to that at Conowingo, Maryland, at the site of the Bald Friar rocks. The marks appear to have been chipped to a considerable depth and then rubbed with sand and some hard substance so as to present a smooth and even surface, removing all or nearly all of the pecked surface. Mr. P. W. Shafer, on the same historical map of Pennsylvania before mentioned, presents also a group of pictures copied from the originals on the Alleghany river, in Venango county, 5 miles south of Franklin, on what is known as the Indian God rock. There are but six characters furnished in his copy, three of which are variations of the human form, while the others are undetermined.