WOOD COUNTY. 383 | 
them. At Grand Rapids, in Wood county, only a foot of a fossiliferous | 
limestone, referable to the Lower Corniferous, intervenes between the 
Oriskany and the Waterlime; while at Charloe, in Paulding county, 
that intervening bed has increased to four feet, showing a vertical 
change of ten feet in passing westward a distance of about cighty-five 
miles. | 
The Lower Oorniferous underlies the western portions of Weston and 
Milton townships. The only outcrop which is known to occur south of 
Grand Rapids is at the quarry of Mr. Luther Pue, 8S. W. 4 section 6, 
Milton township. The following section was here taken, and is believed 
to show the junction between the Upper and Lower Corniferous: 
No. 1. Very fossiliferous beds of one to two inches; shattered and water- 
washed; very slight exposure. This is thrown out in quar- 
rying. An Orihis can here be distinguished, two or three 
corals, and a Brachiopod, like a long-beaked, small Pentamerus, 
with fragments of numerous other. fossils .............. UMass IL ity 
“‘ 2. Harsh,magnesian limestone, without fossils; apparently in thick 
beds, having much the outward aspect of a sandstone; some 
flags of two inches thick have been taken out; exposed....... 3 
po balRexE OSE CAL Wei ar cane A Vue let a IAM EU oe eg 4“ 
The Drift in Wood county shows the usual characters of a glacial 
hard pan. The upper six or eight feet are of a light brown color. The 
remainder is known as “blue clay.” The whole contains, disseminated 
through the mass irregularly, more or less sand, pebble-stones, and bow!l- 
ders. The average thickness of the whole would be not far from seventy- 
five feet. lt shows locally, but very rarely, an indistinct assortment, 
or at least an arrangement of its materials in tortuous bands, as if the 
mass itself had been compressed or folded, or had been denuded and 
again covered with the same materials. There is also more or less super- 
ficial lamination of the upper part seen in the banks of the Maumee 
near its mouth. These strata, which contain, so far as seen, nothing 
coarser than fine sand, and usually consist largely of clay, seem to be 
confined to the larger water-courses. They are by no means constant. 
On the contrary, the banks even of the Maumee generally contain nothing 
but the typical hard-pan, or glacial clay, which rises to the surface and 
forms the soil. These laminations below pass into coarser materials, 
containing, with a gradual loss of their distinct arrangement into layers, 
gravel and bowlders. The beds, although not infrequently oblique and 
wavy, are usually nearly horizontal. They become more oblique near 
their junction with the unstratified Drift, into which they merge and 
become lost. They are believed to be due to the action of water from 
