. Bulletin. Ethnology. 148 BUREAU OF AMERICAN ETHNOLOGY [bull. 76 is nowhere more than a foot deep. A section is presented in fig- ure 34. At 100 feet the room came to an end. The space between the walls Mas 7| feet at the floor level and 4 feet at a depth of 4 feet. At 105 feet the nearly vertical walls were only 5 feet apart on the floor; at 112 feet the space increased to 7 feet. A section showed about a foot of loose earth mixed with ashes; 3 feet of yellow clayey earth, rather compact; then gravel and sand. The latter was dug into for a foot, at which level the walls were converging and i
. Bulletin. Ethnology. 148 BUREAU OF AMERICAN ETHNOLOGY [bull. 76 is nowhere more than a foot deep. A section is presented in fig- ure 34. At 100 feet the room came to an end. The space between the walls Mas 7| feet at the floor level and 4 feet at a depth of 4 feet. At 105 feet the nearly vertical walls were only 5 feet apart on the floor; at 112 feet the space increased to 7 feet. A section showed about a foot of loose earth mixed with ashes; 3 feet of yellow clayey earth, rather compact; then gravel and sand. The latter was dug into for a foot, at which level the walls were converging and it was useless to go any deeper. Enough was done, however, to verify the supposition that this stratum was due to the action of running water seeking its outlet at the mouth of the cave. At 103 feet, at the bottom of the yellow clay and on top of the gravel, was a chalcedony pebble about 2^ inches in diameter. The material is foreign to this locality. It had plainly been used as a hammer stone, and is the only object of human origin found anywhere below the dark earth. There was not the slightest evidence of any disturbance of the clay in which it rested. At 120 feet the side walls were only 5 feet apart. At 125 feet they again diverged slightly, and a recess on the left forms a chamber 12 feet across. At 150 feet they had drawn in to 8 feet at the widest interval. A section showed loose dry earth, some of it cemented b}^ drip from the roof until about as hard as lump chalk; then compact clayey earth, also with travertine in small lumps; below this the gravel and sand. The latter, at this point, seems to have been deposited in the last stages of the formation of the cave. Occasionally, along here, a small patch appeared that seemed to be ashes; but none of it was more than 6 inches below the top of the ground, and the substance may not have been ast\es at all, but the fine white limestone dust that wears off from the stone. There was nothing in the trench, at any depth, after th
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