. Bulletin. Ethnology. At 38 feet the yellow earth had risen until it was within 3 feet of the top of the entire overlying deposit. The latter contained little of the dark earth, being mostly composed of ashes and burned earth, some of which resulted from fires made on the spot, but the greater jjart being thrown from other points. The rise of the yellow earth, conse- quently, is more rapid than the rise of the material covering it. At 40 feet there Fig. 29.—Cross section of Fort Deposit Cave at 35i feet. waS a dip in the yellow earth, extending for 4 or 5 feet and descending 2 feet at the dee
. Bulletin. Ethnology. At 38 feet the yellow earth had risen until it was within 3 feet of the top of the entire overlying deposit. The latter contained little of the dark earth, being mostly composed of ashes and burned earth, some of which resulted from fires made on the spot, but the greater jjart being thrown from other points. The rise of the yellow earth, conse- quently, is more rapid than the rise of the material covering it. At 40 feet there Fig. 29.—Cross section of Fort Deposit Cave at 35i feet. waS a dip in the yellow earth, extending for 4 or 5 feet and descending 2 feet at the deepest point. This may be due to drainage at a lower level. At 47| feet a pocket of the dark earth extended a few inches into the underlying yellow earth. A hole seems to have been dug into the latter. There was no more of foreign material in this hole than elsewhere in the dark earth above and around it. It is shown in figure 30. The amount of shells, pottery, etc., had been decreasing for several feet before this point was reached; indeed, from 40 feet onward there was very little of it—enough, however, to show that all the dark earth had been disturbed and thoroughly mixed. The fire beds, too, while holding their depth of about a foot, contained more earth between the suc- cessive layers of ashes, showing as great age, probably, as those nearer the entrance, but less con- tinuous occupation. This con- dition prevailed to about 60 feet from the entrance, at which point the yellow earth, now mixed with sand and gravel, was only 3 feet below the surface of the floor. The appearance of this line is sketched in figure 31. At 62 feet there was a dip in the yellow earth, extending to 67 feet and 2 feet deep at its lowest point; it then rose to the usual level. At 70 feet ashes appeared in greater quantities; at 73 feet the dark earth was only a foot thick, the ashes and burned earth being 2 feet. Fig. -Cross section of Fort Deposit Cave at 47J Please note that these images
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