This idea of some peculiar relations connecting the symbolic architects of Wisconsin with the Mound-Builders of the Ohio, derives confirmation from the few but remarkable animal-mounds of the latter, in which their connection with the religious rites of the ancient race is borne out. One example of an animal-mound, upwards of 250 feet in length, and probably designed to represent a bear, occupies a high level terrace on the west bank of the Scioto river. Unlike any of the symbolic mounds of Wisconsin, it is surrounded by an oval embankment measuring four hundred and eighty feet in greatest diameter. On the south side a space of about ninety feet wide breaking the continuity of the embankment, is covered by a long exterior mound, leaving two avenues of approach where it overlaps the inner oval. This mound has not been opened; but in the process of excavating the Ohio canal, large quantities of mica, similar to what occurs so abundantly in the sacrificial mounds, were found in its immediate vicinity. The same canal intersects Newark earthworks; and there, within another elliptic vallum, is the Eagle Mound, measuring 155 feet in length of body, and 200 feet between the tips of the wings. It is only a minor feature of the remarkable group, already described, which includes geometrical enclosures, mounds, and avenues; but it is distinguished from all the others, by the great scale of its enclosing walls, and interior ditch. Unfortunately it was opened by a former proprietor in search of treasure; and no further record of its contents has been preserved, except that it covered a hearth of a similar character to the altars already described as characteristic of the sacrificial mounds. The fact, however, illustrates the contrast between works bearing so much external resemblance to each other as the symbolic mounds of the Mississippi Valleys and those of Wisconsin. In the absence of all included relics of worship or inhumation, the latter seem but as symbols of the rites practised by the southern Mound-Builders.