Archaeological Investigations in Jefferson County, Mo. 187 
A few Imperial Plain and Crystal City Cord Roughened 
sherds were mixed with a much larger number of Herculaneum 
Cord Roughened sherds near the surface. Herculaneum Cord 
Roughened sherds were found down to the rock floor. There 
were no Imperial Plain or Crystal City Cord Roughened sherds 
below 30 centimeters depth. The Herculaneum Cord Roughened 
sherds found near the bottom definitely had much more irregular 
sized tempering than the sherds from nearer the surface but 
could not be classed as Herculaneum Reddish Buff or Rouggly 
Uneven Grit. Some of the sherds appeared to have clay temper- 
ing also. Not one complete artifact was found. 
J83 is 75 meters south of J81. It is very small, being only 
6 meters across the mouth and is approximately 6 meters deep. 
The rock floor rises abruptly and appears above a silt fill at 
the back of the shelter. There were no signs of aboriginal 
occupation on the surface. A definite hobo level was distinguish- 
able with tin can refuse, iron nails and modern wood to a depth 
of 15 to 20 centimeters. 
At a depth of 30-40 centimeters in the center of the 
silt fill was found a straight line of disintegrated post bottoms 
across the. width of the shelter. These appeared to have served 
as a support for a wooden platform or bench the back end of 
which rested on the upward sloping rock at the rear of the 
shelter. From 30 to 60 centimeters depth an intensive occupation 
layer was found in front of these post remnants containing con- 
siderable quantities of ash, mussel shells, sherds and worked arti- 
facts. No fireplace with clearly defined outlines was found but 
the ash content left no doubt that fires had been kindled in front 
of the platform. 
The pottery on these middle occupation levels was a mix- 
ture of Herculaneum Cord Roughened and Imperial Plain ware. 
Of 88 sherds, 46 were Herculaneum Cord Roughened, which in- 
cluded 18 limestone tempered and 5 mixed limestone and shell 
tempered sherds, 19 were Plattin Clay Tempered, 20 were Im- 
perial Plain, and 3 were St. Jo Polish Plain. 
