10 ANCIENT WORKS IN OHIO. VII. 



a grade that might with as little labor have been constructed in a direct line to the 

 Miami Kiver, is made in the opposite direction, away from water. I should judge 

 that the rivulet was not a permanent stream, and therefore could not furnish a 

 constant supply of water. Besides, the graded way instead of terminating at this 

 rivulet, crosses it, and probably by an ancient culvert or sluice, allowed the water 

 to pass under the road. 



Without taking such measurements as would be sufficient to estimate the con- 

 tents of the ditch in cubic yards, it appeared to be about equal to the embankment 

 in capacity. The section a, 6, gives its form, and the position of the low interior 

 wall. 



It is not improbable that there may have been outworks connected with this 

 remarkable group that were not seen, or which have been destroyed by the plough. 



PLATE III. No. 2. 



MOUND NEAR NEWTOWN. 



Figure A, of the separate sketch, represents the base of an irregular mound, 

 forty feet high, two hundred and fifty feet on the longer axis, and one hundred and 

 fifty on the shorter. It appears to be composed of the light loamy soil of the 

 vicinity, and is the only instance within my observations of a mound with an irre- 

 gular outline. Where the road ascends the low gravel bluff, from the first to the 

 second bottom, immense numbers of human bones were found in comparative pre- 

 servation, imbedded in limestone gravel. There is another mound fifteen feet high 

 near the village of Newtown, standing on the first bottom. A good notice of the 

 ancient works about Newtown appeared in the "Cincinnati Chronicle," in Sep- 

 tember, 1839, by Mr. Timothy Day, of Cincinnati, Ohio. 



PLATE III. No. 3. 



WORK NEAR COLUMBUS, OHIO. 



These structures are simply circles, or figures approaching to circles, with occa- 

 sional irregularities. There is a difference of fifty feet in the diameters of the 

 larger one, and the outline bends each way from the curve of a true circle, a few 

 feet, making short straight portions, not capable of representation on our scale. 

 The ditches are at present very slight, and not uniform in depth or breadth. From 

 the top of the bank to the bottom of the ditch, the difference in no place exceeds 



