Some years ago one of the mounds at Ferguson, St. Louis County, was opened. No remains of any sort were discovered, according to the report of the excavators; but on the original surface, at the center of the mound, was a fire bed in and about which were ashes, charcoal, and fragments of rude pottery.
No excavations have ever been made in the mounds near Granite Mountain; but a tortuous little stream has undercut several of them, thus making vertical sections as in the case of the mound at Hunter's, near Farmington. In some mounds only a small portion near the margin has been removed; in others the erosion has progressed to such an extent that observations were possible at varying distances, to and beyond the center. In every instance a monotonous uniformity of appearance prevails from the top of the mound into the underlying gravel. At no level is there a sign of a floor, fire bed, or other evidence of human work; and no difference can be detected between the earth upon which the mound rests and that on either side. Yet the mounds are indubitably artificial.
Exactly the same remarks apply to several mounds on the County Farm, near Salem. A little creek and a drainage ditch have cut away varying portions of them, and they merge insensibly into the soil and gravel on either side.
In further support of the theory that these mounds are the remains of earth-covered houses, a few extracts relating to the area under discussion will be given from Dr. Cyrus Thomas in the Twelfth Annual Report of the Bureau of Ethnology:
Near "Beckwith's Fort," in Mississippi County, Missouri, are (p. 189)—
Low, flattish, circular mounds * * * [which] appear to belong to two classes, those used for dwelling sites and those used for burial purposes, the former being the higher and the color of the surface layer darker than that of the other class. This darker color of the surface layer is probably due to the fact that immediately below it are found fire-beds with burnt earth, charcoal, ashes, and the bones of animals, (mostly split). There are seldom any human skeletons or entire vessels of pottery in the mounds of this class though the earth is filled with fragments of broken vessels.
In describing mound excavations in Crittenden County, Arkansas, the explorer states (p. 227):
As an almost universal rule, after removing a foot or two of top soil, a layer of burnt clay in a broken or fragmentary condition would be found, sometimes with impressions of grass or twigs, which easily crumbled but was often hard and stamped apparently with an implement made of split reeds of comparatively large size. This layer was in places a foot thick and frequently burned to a brick red or even to clinkers.
Below this, at a depth of 3 to 5 feet from the surface, were more or less ashes, and often 6 inches of charred grass, immediately covering skeletons. The latter were found lying in all directions, some with the face up, others with it down, and others on the side. With these were vessels of clay, in some cases one, sometimes more.
The positions of the skeletons in this mound would indicate that while the inmates of the house were asleep the roof fell and killed them. It was customary among some southern Indians to bury the dead under the floors of the houses; but the text clearly shows that these skeletons were lying on the floor. It would be supposed from most reports, not only in the volume quoted, but from various other sources as well, that only the walls of these houses were plastered with mud, the roof being of thatch alone. It seems to be overlooked that the tops of the houses would have even more need of such protection than the sides. The marks indicating that the clay was "stamped apparently with an implement made of split reeds" are only the impressions of the reeds or saplings by which the clay was supported; the "brick like" or "clinker like" condition of the clay being due, of course, to the destruction of the house by fire.