The American journal of science and arts . al stratum is notthick, the roof is sometimes supported by wooden, instead of coalpillars, but this is not considered as safe as the other mode. Nearly opposite to this mine is that of Borbridge and Donley, oneof the greatest in the valley ; we preserved no minutes of this mine,which is a stupendous cavern, into which a coach and six might bedriven and turned again with ease. Most of the coal hitherto sent 526 Notice of the Anthracile Region in the down the Susquehanna, has been from these two mines : the quanti-ty left is apparently incalculable : th
The American journal of science and arts . al stratum is notthick, the roof is sometimes supported by wooden, instead of coalpillars, but this is not considered as safe as the other mode. Nearly opposite to this mine is that of Borbridge and Donley, oneof the greatest in the valley ; we preserved no minutes of this mine,which is a stupendous cavern, into which a coach and six might bedriven and turned again with ease. Most of the coal hitherto sent 526 Notice of the Anthracile Region in the down the Susquehanna, has been from these two mines : the quanti-ty left is apparently incalculable : they are about commencing a rail-road to the river which is a mile distant. V. Mr. Harveys bed, at the breast work rocks: W. side of the Immense rocks of gray wacke.—2. Broken coal, 4 ft.—3. Firm-er coal, 4 ft.—4. Good coal, thickness unknown.—Dip 8° to the VI. Front vieio of a contorted coal bed at Pittston, on the east bankof the Susquehanna Paver, nine miles north from Wilkesbarre. /f \ \\ \\ \> / >-%^-. ^v^l. a Loose stones and earth. h Gray sand stone, c Slate 12 feet in depth. d Slate liiingied with coal, 4 ft. e Coal, 13 ft. R Susquehanna River VII 1 eft Mr. Hillhouseh bed on the east bank of the Susquehanna, about seven miles north of Sandstone, 4 ft.—3. Loose slate, 20 in.—4. Coal,-5. Slate, 8 ft.—6. Coal, 18 in.—7. Slate, probably about8 ft.—9. Thin stratum of coal.—Dip 5° S. E. This bed extends a considerable distance along the bottom ofthe river. VIIL Mill Creek bed, nine miles east from Wilkesbarre, and twofrom the Lackawanna Soil.—3. Slate, 12 ft.—3. Coal, 18 in.—4. Slate, 5 ft.—, 4 ft.—6. Slate, 8 ft.—7. Coal, 6 ft.—8. Slate, thickness un-known.—Dip 4^ N. E. Valley of the Lackawanna and of Wyoming. 327 This bed is remarkable for the succession of slate and coal strata jMill Creek, a considerable stream, flows by, and has laid the bedopen one eighth of a mile. At one spot
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