136 DAVENPORT ACADEMY OF NATITRAL SCIENCES. 



On the same day we opened another mound west of No. 1. This 

 mound was of oval form, fifteen by twenty-five feet and two and a 

 half feet in height. Two and a half feet below the surface we found 

 a layer of limestone rook, accurately fitted together, and forming a 

 rather smooth surface, in the shape of a half circle. Below this 

 pavement was resting a skeleton in a sitting position. The bones 

 were entirely decayed except the cranium, which was better pre- 

 served, and is presented to the Museum. No relics were found. 



[This mound is marked 3 on the plan]. 



The mound marked 5, in the same row, west of the above, is forty-six 

 feet long and six feet broad, and but a few inches above the sur- 

 rounding earth. On this mound, immediately below the green sod is, 

 extending through the whole length, a layer of limestone, which here 

 and there is not quite covered by the sod. On the same day, we made 

 an opening in the west side of this mound, five feet long and four 

 feet wide. Under this stone bed we met with a second one, and be- 

 low this second layer of stones appeared a mixed soil, intermingled 

 with little stones up to the size of a child's head, but not the least 

 sign of human bones or relics. Two weeks later, we (Mr. Toellner 

 and myself) made some further explorations in the same mound, ex- 

 tending the first opening twelve feet farther, but found everything in 

 the same condition as above descril)ed. Neither bones nor other relics 

 were to be found in this mound. 



September 3d, 1 879, 1 examined som,e mounds on Copper creek, 

 in Section 23, Township 16, Range 4 west. The first one is of con- 

 ical form, one and a half feet high and twenty-five feet in diameter. 

 This mound has been formerly much higher, but has been reduced by 

 tilling the ground for fifteen years. I made an excavation a few 

 feet square and found near the surface a layer of mixed soil, three 

 feet thick, below this layer a bed of sand of four inches, and under 

 this a human skeleton very much decayed. On the right hand side 

 of this skeleton a few fragments of pottery were found, and a piece 

 of copper having the appearance of an unfinished mound builder's axe. 



The second mound opened on the above date is nine feet high 

 and oval, sixty by ninety feet, and was formerly much higher, having 

 been scraped down a good deal by the owner several years ago. It 

 is situated in a very low portion of the valley, near the junction of 

 the two creeks. We made an o})ening about six feet scjuare at the 

 most elevated point of the surface and down to the natuial soil, 

 penetrating various layers of sand and clay. This material must 



