no DAVENPORT ACADEMY OF NATURAL SCIENCES. 



Scott County — Continued. 



ones are about 9 yards in diameter and 2^ feet high; they are 

 composed of earth, day, and black soil, and are built upon the 

 original surface; they yielded no remains or relics. Black oaks 

 from 6 to 8 inches in diameter grow over the middle mound. 



The shell-beds at East Davenport and on Rock Island, although 

 they have yielded a bone awl, stone axe, hammer-stones, an arrow- 

 head, etc., are believed by Pratt '3i to be natural formations made 

 at times of high water. He, however, makes exception in favor 

 of the one at the lower end of Rock Island, which is eighteen 

 feet above the high-water level, and is irregular in position and 

 thickness. Tiffany has described it; from it came a skull and 

 human bones, as well as the point of an antler similar to speci- 

 mens from some mounds. 



Davenport. — A copper implement found in excavation for a 

 gasometer, 400 feet north of the Mississippi River, at a depth of 

 II feet, in a small fissure or depression in the Devonian rock. 

 The locality is 19^ feet above low- water mark. The strata here 

 are 2 feet black soil, 5 feet clay and sand, 2)^ feet pebbles and 

 bowlders (this probably continues to the rock). The implement 

 is pointed at both ends, tapering from the mic^dle, and is 4^ 

 inches long and ^-inch in diameter. Much oxydized.36 



Near Davenport {Cdi^t. Hall's place). — Mound opened. Tif- 

 fany 178 found a copper axe covered with cloth, a stone pipe, four 

 arrow-heads, one worked bone, and a broken crock; also frag- 

 ments of obsidian, a lump of yellow ochre, flakes of mica, and 

 parts of two skeletons. 3^ 



One mile below Davenport, on bank of Mississippi, bearing 

 north-east and south-west {^Cook Farm) two hundred and fifty feet 

 from high water mark, though but 8 to 12 feet above it. 55 



No. I. Apparently double on surface ; diameter 30 feet; height 

 4 or 5 feet. The structure presents a foot of earth ; a layer of 

 stones, nicely joined, i ^ feet ; 2 inches of shells ; a foot of earth; 

 shells 4 inches; under this, at 5 feet, five skeletons of adults, hor- 

 izontal, parallel, and near together. Three lay from east to west, 

 with skull of one on shoulder of next ; the other two lay headed 

 west. With the last two were a large sea-shell {Pyrula perversa) 

 with axis and inner whorls removed; two copper axes, back to 

 back, covered with cloth; one copper awl, a flint arrow-head, two 

 pipes of stone — one frog, one plain. 



