LAWEENCE COUNTY. 41 



the south side of Indian creek, and at several other points in the neigh- 

 borhood a coal seam is found which has been opened and worked in a 

 limited way to supply the local demand for coal. It ranges from twelve 

 to eighteen inches in thickness and is mined only by stripping along its 

 outcrop in the banks of the small streams. The seam at Mr. Hender- 

 son's place is from twenty-five to thirty feet above the bed of Indian 

 creek, and partial outcrops of soft shale were seen between the coal 

 seam and the creek level. This coal seems to be identical with that at 

 Mr. Xettle's, near the south line of Crawford county, and the equiva- 

 lent of Xo. 12 of the general section. It outcrops also on Mud creek, 

 three or four miles north-west of Lawrenceville, at several places, and 

 has been worked to a limited extent to supply the neighboring black- 

 smiths previous to the construction of the O. and M. railroad, since 

 which time it has been generally abandoned. 



A boring was made some eight or ten years ago at Lawrenceville, to 

 the depth of about four hundred and fifty feet, but no accurate record 

 has been kept of the beds passed through. A thin coal was reported 

 at the depth of three hundred and forty feet, and another seam four 

 feet thick near the bottom of the bore, but it seems probable, from all 

 that can be learned at the present time, that ,the work was not in charge 

 of a competent person, and hence but little reliance can be placed on 

 the reported results. A very good brine was said to have been reached 

 near the bottom of the bore. 



The following sections and notes are reported by Prof. Cox, from 

 his examinations at localities not visited by myself: "At John Leed's 

 quarry, on Iudian creek, one mile west of the St. Praucisville road, 

 found the following section : 



Ft. In. 



Gray shale 6 



Carbonaceous shale 6 



Shale 8 



Sandstone, in even beds from 4 in. to 1 foot thick 3 



This sandstone is a durable b adding stone and was used in the bridge 

 abutments on the Embarras river. On the north bank of the Embarras 

 river, at the Shaker mill, on sec. 32, T. 5, E. 12, the following section 

 was found, the massive sandstone being probably the equivalent of that 

 at St. Francisville : 



Ft. 



Soil and drift 5 



ThiD-bedded sandstone, 2 to 8 inches 8 



Massive sandstone ."*. 13 



Section on Indian creek, three miles south of Lawrenceville : 



Ft. In. 

 Soil and drift 10 



Argillaceous sha'e, with iron bands 25 



Injpure coal 8 



Fire-clay and gray shale 5 



Blnisb sandstone in the bed of the creek ? " 



—7 



