prepared intelligently, with great labor, for human uses. "Lines of embankment varying from 5 to 30 feet in height, and inclosing from 1 to 50 acres, are very common, while inclosures containing from 100 to 200 acres are not infrequent, and occasional works are found inclosing as many as 400 acres." Figures 6 and 7 give views of the Hopeton works, four miles north of Chillicothe, Ohio. Combinations of the square and circle are common in these ancient works, and the figures are always perfect. This perfection of the figures proves, as Squier and Davis remark, that "the builders possessed a standard of measurement, and had a means of determining angles." About 100 inclosures and 500 mounds have been examined in Ross County, Ohio. The number of mounds in the whole state is estimated at over 10,000, and the number of inclosures at more than 1500. The great number of these ancient remains in the regions occupied by the Mound-Builders is really surprising. They are more numerous in the regions on the lower Mississippi and the Gulf of Mexico than any where else; and here, in some cases, sun-dried brick was used in the embank ments. One peculiarity at the South is, that while the inclosures are generally smaller and comparatively less numerous, there is a greater proportion of low mounds, and these are often larger in extent. Harrison Mound, in South Carolina, is 480 feet in circumference and 15 feet high. Another is described as 500 feet in circumference at the base, 225 at the summit, and 34 feet high. In a small mound near this, which was opened, there was found “an urn holding 46 quarts," and also a considerable deposit of beads and shell ornaments very much decomposed. Broad terraces of various heights, mounds with several stages, elevated passages, and long avenues, and aguadas or artificial ponds, are common at the South. Figure 8 shows the remains of a graded way of this ancient people near Piketon, Ohio. |