FOWKE] ANTIQUITIES OF MISSOURI 35 
distance between their extreme outer edges was 7 feet 10 inches. 
Four of these slabs may be seen in plate 6, which shows also the 
inside face of the northwest wall. The other sides were built up wall 
fashion, of smaller rocks, most of them lying flat, though some were 
found slightly inclined on account of the unequal settling of the 
earth against which they rested. 
In this vault, as in all others investigated during the first summer, 
the walls leaned slightly outward, making the chamber wider at the 
top than at the bottom, proving that, as each rock or row of rocks 
was placed, earth was piled against it. In fact, many stones must 
have been held up until the supporting earth was packed under 
them, since when it was removed nearly every one fell outward. 
This was especially true of the long slabs at the northeast, which 
rested against a bank of earth containing only the single row of rocks 
along the top. Yet the walls were so nearly vertical as to exclude 
the idea that earth was piled up first and then stones laid. The 
building of both parts must of necessity have progressed concurrently. 
At the northwest end, on the bottom, were two rocks—a slab 12 
by 36 inches, and a block of about the same weight; these appeared 
to have fallen in from the top, though their position might have 
been the result of design. At the southeast end were three stones on 
the bottom, reaching to each side wall. The clear space between 
these stones was 6 feet 4 inches. When they were removed, the 
distance along the floor of the vault between the end walls, with 
which they had lain in close contact, was 8 feet 7 inches. 
The northeast wall stood partly over a grave pit measuring 9 feet 
from northwest to southeast and 4 feet in width. The outer part of 
the northeast vault wall extended diagonally across it from the 
_ orth to the south corner. At the natural surface level, lying on the 
earth with which this grave had been filled, was a skeleton 5 feet 6 
inches long, extended on its back, with the head to the southeast. 
The teeth, though sound and strong, were considerably worn. The 
earth which covered these bones was that which held in place the 
slabs of the northeast wall. 
The grave was shallow and dish-shaped. On the bottom lay an 
extended skeleton 5 feet 4 inches long, with the head to the southeast. 
The teeth were worn flat, and the skull, though well shaped, was small. 
MOUND NO. 10 
This mound, 50 feet east of no. 9, was 32 feet in diameter and not 
more than a foot in height. 
Loose in the earth were a side-notched, very rough chert implement, 
evidently intended for a hoe, and a specimen which from its leaf- 
shaped form and its size would be classed at once as an ordinary 
