438 GEOLOGY OF OHIO. 
olaize, although exactly the same as that at Sandusky, has not been de- 
veloped in north-western Ohio. It is used in the basement of the new 
court-house at Defiance, but was imported from Sandusky for that pur- 
pose. The most of the stone used in this building is from Charloe. 
There is also some stone in it from Chicago (not Niagara), used as 
keystones in arches. When dressed, this is of a white (more cheerful) 
color than the Charloe stone, but on the ground it is light blue, or gray, 
streaked with bituminous films. - It appears a little impure, or earthy. 
The ornamental cut-stone is mostly from Charloe. In the foregoing 
pages a number of exposures of the blue limestone favorable for open- 
ing valuable quarries in Defiance county have been mentioned. These 
occur in the Auglaize, about the mouth of Powell’s Creek. 
The “Auglaize cement” is manufactured by Mr. E. H. Gleason, S. H. 3 
section 34, Defiance, from the black slate. This cement has already been 
mentioned in the first volume, in giving the geology of Marion county. 
Mr. Gleason continues the manufacture. He uses the lowest seventeen 
feet of the formation. Immediately below the black slate is a very hard 
limestone, struck in a well drilled by Mr. Gleason, but abandoned after 
several hours’ labor with very little effect. The stone is burned at a red 
heat for six or eight hours, when it is ground by steam. The lime has 
been used in various ways, and seems to afford very satisfactory results. 
The greatest natural wealth of this county lies undoubtedly in the strong 
and fertile soil with which the greater part of it is furnished. There is 
also an area of a hundred and seventy-thousand acres of heavy forest, 
which supplies material for ship-building and for the manufacture of a 
number of domestic articles. Hard-wood logs are floated down the Mau- 
mee to Toledo. 
