146 GEOLOGY OF OHIO. 
ANALYSES OF Coat No. 5. 
No. 1. Tunnel seam, Tuscarawas county. 
“ 2. Whan seam, New Lisbon, Columbiana county. 
‘“¢ 3. Roger vein, Elliottsville, Jefferson county. 
‘““ 4, RK. Miller, Liberty township, Guernsey county. 
‘“* 5. Roger vein, Salineville, Columbiana county. 
1 2 3. 4 5 
SORGIUIYO ETP ANBLINY Gooocc ec0a60000 600000006 1.375 1.474 1.300 1.267 1.804 
IMOISHUMO MENA Sule dent cwepocctekoeeincsoat 3:20 1.15 1.00 3.00 1.65 
Volatile combustible ................. 39.70 40.45 31.60 36.20 37.39 
Fixed carbon ........ Meee teestetd ee 52.95 53.75 64.40 58.00 53.80 | 
WAS IM ach usar etulavsectacssssesses ohne ssssssites 4,15 4.65 7.00 2.80 7.20 
100. 100. 100. 100. 100. 
SUPINE a ec csotoescceelsesecctecs 3.64 3.51 2.60 LOY 2.08 
Coat No. 6. 
This is probably the most interesting and important of all our coal 
seams. It attains greater thickness, occupies a wider area, and in its 
different outcrops and phases supplies a larger amount of good fuel than 
any other. It also seems destined to make in the future still more im- 
portant contibutions to the wealth of the State. In the remarkable 
section which terminates the coal field at its north-western corner, in 
Holmes county, Coal No. 6 is only two feet in thickness, but it is here par- 
tially cut away by the heavy sandrock (Mahoning sandstone) which over- 
lies it in so many localities. A few miles further east, near Millersburgh, 
at the mine of Judge Armor, it is six feet thick, in two benches, the part- 
ing being near the middle. Here it exhibits a character which it gener- 
ally holds through northern Ohio, viz., it is a rather soft, but very bright 
and black coking coal, containing a moderate amount of sulphur, but too 
much to permit its employment for the manufacture of gas. Throughout 
Holmes county Coal No. 6 is almost constantly present, running from 
three to six feet in thickness, and is the source from which most of the 
fuel used by the inhabitants is supplied. In Tuscarawas county it is 
likewise the most important seam. On Stone Creek it is thin, but in ad- 
joining localities it ranges from four to five feet thick. At Port Washing- 
ton it is seven feet thick. Elsewhere, as at Trenton, Urichsville, Dennison, 
Pike Run, New Philadelphia, the Goshen salt well, and in the valley of the 
‘Connotton, it is nearly of the same thickness, from four to five feet. At 
