812 GEOLOGY 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. 8a is 
said to be three and one-half feet in thickness, and looks well, though © 
containing more sulphur than the upperseam. 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 Reichstah] 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 Rolla, 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 
Youngstown, 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 if 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. 
