214 Transactions of the Academy of Science of St. Louis 
the Jenni mound was pure Middle Mississippi, 
whereas the 
Schock mound is Middle Mississippi mixed with Woodland. 
The following traits serve to distinguish the Kimmswick 
focus from the Plattin focus and are diagnostic: 
Kimmswick Foc 
Large numbers of sallow 
round pits containing larg 
bowls lined with pottery a 
intercalated with clay layers 
used for cooking and as re- 
fuse containers. 
eae or ide ee! baked clay 
firepla 
Rectangular structures with 
one to four center supports. 
Small pit structures with thin 
subfloor wall ditches 
Small grained corn. 
Low mounds over shallow 
ceremonial pits lined with clay 
and conte human _ bones 
above pit. 
Extended human burials di- 
with pottery sherds, 
Burials in village. 
Flaring bitted celts. 
Use of Busycon columellae. 
Pottery trowels of Ge red 
claystone and potte 
Plattin Focus 
Large numbers of refuse pits 
with flat bottoms containing 
quantities of decayed vege- 
table matter. 
Small round depressed baked 
clay fireplaces. 
Wedge bottoms to house posts 
where small uprights were 
used. 
Small pit houses without thin 
subfloor wall ditches. 
Large grained corn. 
Cremated deer and human 
burials next to deep narrow 
ceremonial pits at the base of 
low mounds. 
Extended human burials in 
stone box graves. 
Burials in cemeteries adjacent 
to but not in village. 
