62 Proceedings of Indiana Academy of Science 
Fig. 2. Cross-section of Adena Mound. 
Figure 1 shows the first stage of work in excavating the Adena 
mound near Chillicothe, Ohio, done some 20 years ago by Prof. W. C. 
Mills, Curator and Librarian of the Ohio State Archaeological and His- 
torical Society. Figure 2 shows by a cross-section of the mound 
how it was built at two separate periods. It will be noted that the 
grave in the middle of the original mound is the only one placed below 
the ground level, the others being at four different levels, marking 
Syuare truncated 
. Ho “nad 
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ay 
arit Mills 
. Area 27 Acres. 
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Fig. 3. Square truncated mound and the Baum geometrical earthworks. 
