80 Transactions of the Academy of Science of St, Louis 
probably the southern limit of the settlement is not far 
from this place. The field extends south a quarter of a 
mile and beyond it, in the woods, some imperfectly defined 
depressions occur; but there is no trace of a wall or a ditch 
near, and it is not probable that these are connected with 
the settlement on the north side. The depressions have an 
average depth of 27" in the centre and a diameter bf 3(y. 
There is no definite arrangement in the placing of these 
depressions, as may be seen in the plan. The square of 
baked clay occurs generally in the centre, but is often found 
on one side and at a depth of about 15". The square is 
32" by 27", about 3" thick, and the upper surface is much 
more baked than the lower. It is stated by the farmers 
residing near, that in the ridges between the depressions 
animal 
pottery 
sink oc 
and ditch, which may mark the place from which the earth 
was taken to build up the mounds. A growth of large 
timber covers the settlement at present (1878), and in- 
m 
pomt 
attempt 
Some of these trees are 2' to 3' 6" in diameter and are to 
be found growing on the mounds or in the depressions. 
L 
Potters' plan (Plate II) and his description served as the 
" -' departure for the present operations. First of all an 
the 
the intervening 
of erosion, pitting, and plowing of the site. In this connection 
a gulley shown on Potter's map (Plate II) was used as one clue 
in the relocation of the site, although only an outline of this old 
gulley remains today (Plate III). 
IV. METHODS AND TECHNIQUES 
In order to facilitate the locations of excavations, grid sys- 
tems were established. In the south half of the village a giant 
east-west north-south grid system was set up. A 00 point 
(stake) was located at the intersection of an east-west line and 
a north-south line running midway between the wheat field and 
the^ western boundary fence. All test trenches were given 
grids but the zero point ( 
southeast comer 
tmtil several 
later, a new grid was determined for this area. In this case 
the fence separating the Steel and Matthews properties was 
