THE LOWER COAL MEASURES. 293 
mines are essentially one body of coal, all of the conditions agreeing 
throughout. In the latter mine an entry was driven for 225 yards 
through solid sandstone, the coal being almost entirely cut away, but 
as the entries are followed further to the southward the coal grows more 
steady and reliable. ‘The quality is here at its best, as is shown in the 
analysis of the following average from the Guernsey mine: 
Woalvot"GUermsey MINE siecceeesacccscceccvestseesssrcndeveatedesewscissedsetei esses. Lord. 
IMP OISEUTO eos ccc tacts ttre me ee reece er biecourinceesitas otersdeseieieumilau Gedo's Doe cob edo¥artet 5.82 
Wiolatile matter tccc.cccncccoc-Meewccissccess cacscec oeeseescccoccieesessesrescsesessss 37.46 
IX C CECA DOM ee cadsto ce secece cesses siascee sce soncdioes Sncumsesscacreperscssesdesccsess 53.29 
PACS Taam ee iene ea stato ctls Gouiaceee aac tchis eee ale cinch deuessaversdatotehGescdilecdces evens 3.93 
100.00 
Sulla neem ante as crc cprseeeaceuservesdenssecsosceoscessnecscasoessoeesecs 1.38 
The coal of that part of the field to the south of Cambridge, viz., 
the Will’s Creek Valley, is much superior to that which has its frontage 
on Leatherwood Creek. As has been already stated, the Leatherwood 
mines all strengthen and improve to the southward, where they in sub- 
stance establish connections with the mines of Will’s Creek. 
The following shipping mines are now established in this part of 
the Cambridge coal field : 
Ohio Coal Company’s or Nicholson mine......... Two miles south of Cambridge. 
Manufacturers’ Coal Company’s mine.............. Byesville. 
Akron and Cambridge Coal Company’s mine... Byesville. 
Buffalo Coal Company’s Mine€............ceseeseeee os Hartford. 
Two other new banks have been recently opened. The body of 
coal represented and commanded in large part by these mines, is one of 
the noblest coal areas of the State, second only in volume and steadi- 
ness, and general good quality combined, to the best portions of the 
Hocking Valley. ; 
From the interruptions and breaks described as characterizing the 
Leatherwood mines, this portion of the field is happily free, at least to 
a great extent. ‘wo of the four mines named above have each worked 
out a large acreage without coming upon a single horseback or other 
intrusive element. The Nicholson mine, which is one of the two 
referred to, does not even report a single clay vein. In addition, this 
mine carries fully 7 feet of coal through a large swamp, and never falls 
below 5 or 54 feet. Its coal is also a little harder than that of the 
