944 GEOLOGY OF OHIO. 
Section (22) Coal! oi cchowadecion ioecceemeaseeeesledeeeo ese rated eeace ee ee RGR Ae Ea eater ity 
Fraction 1. coalin cs coccstmansesasaceste dovcacectwetare caitescae reac eee ise ae eM ame eT 63 ft 
Fraction 18)! west halt; icoal tie ainoiensec cements corte bee cae eae 8% ft 
The entire reliance of this portion of the valley for fuel supply 
has been and is in the Upper Freeport coal, here known as the Bayley’s 
Run seam. It has been already described under the preceding section. 
It lies near the drainage level, and is universal throughout the valley. 
It reaches a maximum of 5 feet, and seldom falls to 4 feet. It is un- 
questionably an excellent basis for mining operations, and must soon 
‘come into use, now that transportation is at hand. 
9. THe SHAWNEE AND STRAITSVILLE DISTRICT. 
Under this head will be ineluded all of the Middle Kittanning coal 
(No. 6 of Newberry) of Salt Lick and Coal townships, that is 5 feet 
and more in thickness. A single small outlier in Gore township will 
also be included here. Such coal is found in Sections 11, 12, 13, 14, 
15, 16, 17, 19, 20, 22, 23 and 24 of Salt Lick, in whole or in part, and 
also in Sections 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35 and 36 of Coal 
township. The total area of “Great Vein” land in this district, in- 
cluding the ‘‘ wants” known and undiscovered of the seam, is about 
11,000 acres. The coal is known to be more or less defective in sec- 
tions whose total area exceeds 3,000 acres, but it is to be distinctly 
understood that exploration has not advanced far enough to render 
possible any exact statement or any close estimate of the actual failures 
of the coal. Only those points are known, generally few and far be- 
tween, where mine entries have come to trouble, or where drillers have 
reported defective coal, and the underground connection of these points 
is hypothetical and tentative. 
The tirst methodical testing of the field is now going forward under 
the management of the large companies that are working here. 
Through Sections 11, 12, 15 and 16 of Salt Lick township, the line 
of division between the normal Middle Kittanning seam of the northern 
counties, and the great seam of the Hocking Valley, passes, and the 
best opportunities afforded by the entire field are given here for observ- 
ing the nature and mode of this surprising increase. The whole of 
the change is, in fact, accomplished stan the workings of a single 
mine, as will be presently shown. 
As in the Sunday Creek Valley, already described, the thick coal 
