been attached to it. It was found in two pieces, near Lake Washington, Issaquina County, Mississippi; and is now in the possession of Mr. W. Marshall Anderson, of Circleville, Ohio. [Illustration: FIG. 73.—Lake Washington Disk.] The imitative mounds of Wisconsin hitherto described are in bold relief; but on the Indian Prairie, a few miles from the city of Milwaukee, there occur five designs, wrought—to use a term of European art,—in intaglio. Instead of the representations of animals being executed in relief, the process has been reversed, and the outline has been completed by piling the excavated earth round the edge. A few similar examples have been noted at other points; but such a process is more liable to effacement in the progress of time, unless renewed like the famous “White Horse” of Berkshire, by a periodical “scouring.” The chalk hills of southern England present peculiar facilities for effective colossal intaglio work. Another White Horse, ascribed to Saxon victors of the Danes, accompanies a group of British earthworks on Braddon Hill, Wiltshire; and the colossal human figure, armed with a club, at Cerne, in Dorsetshire, preserves a still closer counterpart to those scattered over the prairie lands beyond the western shores of Lake Michigan. But for our present purpose the comparison of these ancient earthworks with others clearly traceable to modern Indian tribes, is more important than any analogies between the antiquities of the two hemispheres. One fact of obvious significance is the great scale on which the prehistoric races of America wrought, and the consequent evidences of numbers, and of combined labour perseveringly applied to the accomplishment of their aim. It is difficult to convey any definite conception of this by mere description, even though accompanied with minute measurements. A single cruciform mound measures four hundred and twenty feet between the extreme points of its limbs. Lizard and other animal-mounds ranging from eighty to a hundred and fifty feet in length occur in extensive groups; and by their systematic arrangement, impress the mind with the idea of protracted toil carried on under the control of some supreme rule, or stimulated by motives of paramount influence. The Indian tribes that have come under observation are as diverse in habits, arts, and religious rites as in language; but none of them have manifested any capacity for the combination involved in the construction of monuments which more nearly resemble the great embankments and viaducts of modern railway engineering. The extent of such works indicates a settled condition of society, and industry far beyond that of the Iroquois Confederacy. In all this there may be nothing absolutely incompatible with the idea of the Indians being degenerate descendants of such a people, yet it is unsupported by proof. No modern tribe preserves any traces of such ancestral constructive habits; and while the