812 UEOLOGT OF OHIO. 



About twenty-five feet above Coal No. 4, Coal No. 5 (?) shows itself 

 eight to ten inches in thickness. In the valley of the Little Beaver, 

 between New Albany and Green Village, Coals No. 3a and 4 are exposed 

 and somewhat worked on the farm of George Barnes. Coal No. 4 is here 

 three and one-half feet thick, and of very good quality. Coal No. 3a is 

 said to be three and one-half feet in thickness, and looks weJl, though 

 containing more sulphur than the upper seam. Wikart's bank is opened 

 in No. 4. In the east part of the township, Coal No. 4 has been opened 

 on the farms of Reichstahl and Roller, but is not now worked. At 

 Washingtonville Coal No. 4 has been mined for many years. It is here 

 about two and one-half feet thick, the lower two feet the best, and show- 

 ing scarcely a trace of sulphur ; the upper six inches is somewhat slaty. 

 The lower bench furnishes a coal of moderate hardness, cubical fracture, 

 a silvery resinous luster, and is found by analysis to contain only about 

 two per cent, of ash. It is, therefore, one of the purest coals in the 

 State. It was formerly coked in considerable quantity by Messrs. 

 Whistler, Walter, and RoUa, and their coke was regarded as superior to 

 any other in use in Pittsburgh. 



In conclusion, I take pleasure in expressing my great obligations to 

 Mr. Wm. Wetmore, of Canfield, and to Mr. Chauncey H. Andrews, of 

 Youngetown, for important information, and aid in gathering the 

 material for this report. The assistance rendered by Mr. Wetmore was 

 peculiarly valuable, as he has a good general knowledge of the geology of 

 the county, and a minute and accurate acquaintance with all the facts 

 which have been collected in the exploration for coal south of the 

 Mahoning, in much of which he has taken an active part. He has also 

 most generously given much time to the furtherance of the objects of 

 the Survey. 



A few analyses of the useful minerals of Mahoning county are given 

 in the succeeding pages. The mineral wealth of the county merited a 

 larger amount of chemical work, but it unfortunately happened that 

 before the collections made in this county were reached ■ in the progress 

 of analyses in the chemical laboratory, all appropriations for this object 

 were stopped, and they were left untouched with the exception of the 

 few now reported as made by Dr. Wormley. 



Those made by Messrs. Hooker, Lilienthal, and Holbrook were done in 

 the laboratory of the School of Mines, without cost to the State. 



