Archaeological Investigations in Jefferson County, Mo. 
I. INTRODUCTION 
ORGANIZATION INVOLVED AND AREA 
INVESTIGATED 
This report is a description of archaeological investigations 
Carried out by the Academy of Science of St. Louis and the Work 
Projects Administration in Jefferson County, Missouri, south 
of St. Louis during the year November 1, 1939 to November 1. 
1940 inclusive. The work was accomplished under the direct 
auspices of the Academy, which provides a depository at The 
Adult Study Center of Washington University, and the many 
Supplies and materials necessary to carry on the scientific sur- 
vey. The Work Projects Administration provided the labor 
necessary to conduct the work. The Missouri Resources Mu 
Seum at Jefferson City was the official sponsor, and The Smith- 
Sonian Institution at Washington approved the project. A repre- 
sentative ratio of duplicate materials excavated is to go to the 
State Museum and to the Smithsonian. 
It was decided to write this report as soon after November 
} St, 1940 as possible so that those who carry on archaeological 
‘Nvestigations in other regions might have a chance to compare 
their results with ours. Therefore, it must be remembered that 
some of our conclusions are subject to alteration in the light of 
new materials obtained through continued investigations now 
being undertaken by the Academy. A. few locations will be more 
Completely investigated as soon as favorable conditions permit us 
tO resume operation. Some fields containing remains of aboriginal 
villages were in alfalfa or otherwise not available for investi- 
gation, 
