834 GEOL@GY OF OHIO. 
Nelsonville seam on Lost Ban, from which the coal will show less 
sulphur, no more, indeed, than at Straitsville. 
At Old Straitsville, at the original Maginnis bank, the Nelsonville 
seam is eleven feet thick, divided as follows: 
Blue shale. i " 
CORB ROWE INE ao o66659 6060 6606 6600000 S6ad66 c600 Conoes Gaue HUGO 6 10 
SINUS abosos 4o00 S856 $50 990000 090000 GOGO 6oBacH O50 DOSE coSON0 CGS000 ae 4 
Coalymuiddlejbencheememsssmasemstsemeisisicicee seen eee ne eee 1 8 
SIMS s500 cacbes $o500 6509 Ga0900 5805000 5000 5050 860556 900066 on0000 be - 2 
Coal Mowerbench 222 socc acceso resale cn lecie nace ieee ee Meee 2 
A suite of samples was taken in 1869 for analysis. These were No. 1 
and No. 2, from the lower bench; No. 3 and No. 4, from the middle 
bench; Nos. 5, 6, and 7, from the upper bench. 
NO The ING 26 OH IN 8 | NOs ZL IN, Be | NO, A. || INO 7, 
Specific gravity ..--...... 1.291 1.241 1.239 1.244 1.307 1.247 | 1.248 
ACA Pore Weiaieh aa cteN ett Teas | Enel aaa) (eGo Bool ass 
Wolatilenmatterseeeerecoee 34.63 27.46 32.29 35 6L 29 65 By, I) 30.48 
IMDberel CANONS soqq66 Hooo6s 54 29 61.73 59.44 54.90 57/7 59.41 57.21 
PATS TS Seen Spite ih ke. Sinan 8 cates See 3.18 2.66 1.07 1.94 9 98 2 44 6.96 
Total .....-.-.-------| 100,00 | 100.00 | 100.00 | 100.00 | 100.00 | 100.00 | 100.00 
Sulphuneeeenpssseecr ieee 0.98 0.78 0.73 1.05 0.68 0.50 11 
The average percentage of sulphur is 0.85, which is very small. The 
average percentage of ash is 4.03. During the first year of the Survey, 
the Maginnis bank was the only place in all this region where fresh, 
firm specimens of the whole seam could be obtained. Although little 
coal had ever been taken from this bank, it was, nevertheless, famous on 
account of the thickness of the seam, and the seam itself was often 
called the Straitsville seam. At the beginning of the Survey, it was 
popularly believed to be another seam than the one at Nelsonville. 
When the branch railroad was afterwards built from Logan to the 
Sugar Run valley, the town of New Straitsville was laid out, and 
extensive mines opened. Here the seam is as thick as at Old Straits- 
ville, and similar in its structure, and in the quality of the coal. 
Samples selected by Professor Wormley and myself from the mine of the 
Straitsville Mining Company were analyzed. 
No. 1, lower bench; No. 2, middle bench; No. 3 and No. 4, from upper 
bench. 
