DELAWARE COUNTY. 297 
to appear somewhat bituminous and of a dirty or brown color when con- 
stantly wet, but under the weather it becomes a light buff. The upper 
half of this stone is in beds of two to four inches, the lower in beds of 
one to three feet. Near the bottom it becomes arenaceous, and even con- 
glomeratic, passing into the Oriskany sandstone, which has a sudden 
transition to the Waterlime of the Lower Helderberg. It seems to have 
many of the lithological features and the persistency of the Onondaga 
limestone of New York, and may be provisionally parallelized with that 
formation. The fossils are generally absorbed into the rock, casts or 
cavities only remaining; yet a Cyathophylloid and a coarse Favositoid 
' coral have been seen. 
Where the Scioto crosses the southern boundary of the county the fol- 
lowing section was taken, in descending a ravine from the east, on the 
land of Abram Butts: 
SECTION NEAR THE SoutH LinE or DELAWARE CouNTY, IN THE Hast BANK OF THE 
Scioto. ; 
No. 1. Delhi beds; this stone is very fossiliferous. It is hard, sonor- 
ous, and more or less crinoidal, some joints being seen in 
almost every fracture. It is hght-colored, rarely showing a 
blue or a bituminous tint. It presents mural surfaces, with 
a crumbling disintegration, under the weather, the pieces 
falling out being an inch or two across. This is a charac- 
teristic of these beds (Corniferous limestone).................-« 20. ft. 
2. Cherty beds of two to eight inches, of very much the same 
texture and color as No. 1, but almost without fossils (Onon- 
Cle \amn),  INnMAVEISLHONOVS) Wi) cadopoH seemed Conca Ba ene Ce MRmE eH Can nen elie nae 1) 
3 Heayy-bedded, even, magnesian limestone; fit for a cut-stone; 
66 
oé 
sometimes popularly called sandstone; beds eight to twenty 
inches, but including some thinner and more bituminous 
layers about midway, embraced in the thickness of about a 
foot; this has a ight buff color when long exposed, but if 
much wet it shows a brown color, with bituminous films; 
no fossils seen ; no chert (Onondaga limestone? ); seen..... 14 “ 
These beds, or similar ones, are more or less exposed from the county 
line northward, along the banks of the Scioto, as far as to Millville. 
About eighty rods south of Sulphur Spring Station the Delhi beds strike 
away from the river toward the east, the river running on the lower 
member (No. 8) of the last section. But about a mile above the Springs 
these beds return to the left bank of the river, giving it a height, includ- 
ing the underlying magnesian beds, of about forty feet. 
About two miles below Sulphur Spring Station is John Spero’s quarry, 
