360 GEOLOGY OF OHIO. 



a dark drab color, with darker mottlings of blue and purple, and slightly 

 porous. It weathers a buff. The surfaces are very often roughened by 

 small angular prominences which fit into corresponding depressions in 

 the superimposed layer, forming the peculiar structure known as suture- 

 jointed. The beds here lie nearly horizontal, although at other places 

 near they show a slight dip both south, south-east, and sou^h-west. De- 

 scending the creek from Pressnell and Shirden's quarry, the same charac- 

 ters are seen in the rock, which shows' constant surface exposure to its 

 junction with the Blanchard. Two or three short anticlinals occur in 

 the bedding within that interval, and the beds are often glacier-scratched 

 in a direction south 40° west. The bed of the creek lies on the surface 

 of the rock, without having made any sensible excavation. Further up 

 the creek are the quarries of Mr. Chris. Neucer, on land of Dr. B. Raw- 

 son, which also supplies stone for all the uses to which the Niagara is 

 adapted, and of Mr. E. P. Philips, the latter on the N. W. \, S. E. \ sec- 

 tion 30, of Findlay township, and embracing also a few beds of the over- 

 lying Waterlime. 



S. E. J section 18, Findlay township. In the bed of Lye Creek the 

 Niagara appears in thick beds, and has been burned for quicklime by 

 Mr. Isaac Harshy. Along this creek the Niagara may be seen on section 

 10, Jackson township, where it is in porous beds of three inches, ru3ty 

 and shattered from exposure ; and on S. E. \ section 38, Marion town- 

 ship, where the bedding is the same, showing some blue and gray on 

 fracture, and frequently to the junction of the creek with the Blanchard. 

 It also was observed on S. W. \ section 27, Marion township, on land of 

 Samuel Essex, in the bottom of a ditch, and in the S. W. \ section 33, in 

 a ditch by the side of the road. 



In the Blanchard it is quarried in sections 12 and 1, Amanda town- 

 ship, where it is gray and vesicular. After it has been weathered a 

 short time it acquires a greenish tinge, and also becomes firmer. A spe- 

 cies of lllwnus was met with here. On section 21, Marion township, it 

 lies in massive gray beds. Mr. Allen Wiseley has opened it in the 

 Blanchard on N. W. I section 23, and it is abundantly exposed on section 

 16, both of the same township. Near Findlay it is quarried by Mr. 

 Squire Carlin and by Mr. William Pilcher. Under the highway over 

 the Blancl.ard at Findlay it has a characteristic surface exposure, where 

 the current of the river has washed away the left bank so as to uncover 

 a beautiful exhibition of glacial marks. 



In the township of Cass the Niagara is wrought for lime and for foun- 

 dations by Mr. John Frank, on the S. W. \ section 4. Beds have here a 

 .thickness of three to six inches ; loose and vesicular. 



