The presence of pottery of a type common to this region in fields and shell heaps, and of maize, denotes that all the fire beds, etc., are the results of habitation by the modern Indian. Where these ceased nothing else was found. In or below the yellow earth, clay, or gravel, nothing can be found; for until these were laid down and the stream of the cave had sought another outlet, there was no dry place in which to live.
It may be worth recording that a dead mulberry tree stood about 20 feet in front of the entrance to the cave. Under it was a narrow crevice filled with earth, but all around it was bare rock. A root, larger than the tree, grew into the cave and followed along one side wall as if fastened there for a distance of some 60 feet. Here the earth floor of the cave came high enough to cover it. This root was exposed for 160 feet in the trench, or 180 feet from the tree; at this point it was 3 inches in diameter and turned aside into a crevice. As the root could not have grown in the open air, it furnished proof that much deposited material has been carried out of the front portion of the cavern and away from the ledge since this tree was a sprout.
III. EXPLORATIONS ALONG THE MISSOURI RIVER BLUFFS IN KANSAS AND NEBRASKA[ToC]
VICINITY OF WHITE CLOUD, KANSAS
About 4 miles southeast of White Cloud, Kansas, is the "Taylor Mound," from which Mark E. Zimmerman and William Park took 56 skeletons, or portions of skeletons, in a space not more than 6 by 20 feet. This was clearly an intrusive communal burial of skeletons carried from some other point and interred in the mound which owed its origin to persons who had piled it up at some previous time. The bones, which were not arranged in any order, were 30 inches beneath the present surface of the mound, but this does not mean they were no deeper originally, as the mound has been plowed for many years and is in a situation where it will easily wear down when cultivated.
A few feet away, at a depth of 7 feet, other bones, or fragments of bones, were found in a mass of burned clay. A cremation had taken place at some point away from the mound, and the resultant burned earth, with so much of the bone matter as was not destroyed by the fire, was carried here and buried. The depth in this instance is not significant; the earth is loose and very easily dug; besides, the grave pit was near the margin of the mound and earth had washed down over it from above.
Some stones, carried from neighboring ravines, have been exposed by the wear due to erosion from natural causes and from cultivation. The main portion of the structure is still intact, and it is probable that no deposits belonging to it at the time of its construction have been unearthed. A systematic exploration, showing the original construction as well as the alterations resulting from later burials, is much to be desired.