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It was, by the way, an anthracite property. In response to an urgent invitation from a presumably reliable acquaintance, my friend took his car and journeyed westward into Pinar del Rio, through a charming country that he and I have many times enjoyed together. He picked up his coal-discovering friend in the city of Pinar del Rio, and proceeded into the country to inspect the coal-vein.
He walked by my side very calm, glancing here and there, and once turned his head to look after a Sidiboy fireman in a cutaway coat and yellowish trousers, whose black face had silky gleams like a lump of anthracite coal.
He was one who would kindle slowly, but it would be an anthracite flame that would burn on while life lasted. He felt that he had no reason for discouragement, for she seemed to grow more kind and friendly every day.
Nothing to nibble on but knobs of anthracite. Nothing to sleep on softer or cleaner than coal-dust. Nothing to drink but the brackish water under their keel. "Rather rough!" as they afterward patiently told us. Meantime the Constitution had got hold of a tug, and was making her way to an anchorage where her guns commanded everything and everybody. Good and true men chuckled greatly over this.
If 54.4 lb. of coal is equal to 1,000 cubic feet of gas, then one ton, or 2,000 lb., is equal to 36,764 cubic feet, or 2,240 lb. of coal is equal to 40,768 cubic feet of natural gas. If we compare this gas with anthracite coal, we find that 1,000 cubic feet of gas is equal to 58.4 lb. of this coal, and 2,000 lb. of coal is equal to 34,246 cubic feet of natural gas.
Air is blown in by steam driven in under the hearth. There is a siphon, a coke scrubber 110 inches high, a sawdust purifier, and a gasholder of 750 cubic feet capacity, and a pipe to the engine 5.2 inches in diameter. The total area occupied by this apparatus is 140 square yards, of which two-thirds are built on. The anthracite employed was from Swansea, containing 5.4 per cent. of ash.
"Yes, it did," answered the other. "And I am glad these are the last bags we have to tie up and take out. I should not have wondered if the whole three of us had turned into lunatics. As for me, I have tried hard to stop thinking about the business, and I have found that the best thing I could do was to try and consider the stuff in these bags as coal good, clean, anthracite coal.
A point of Natural History being suggested, he gave an excellent account of the air-bladder of fishes. He was very full upon the subject of agriculture, but retired from the conversation when horticulture was introduced in the discussion. So he seemed well acquainted with the geology of anthracite, but did not pretend to know anything of other kinds of coal.
The fact that the great supply-field of natural gas in Western Pennsylvania, New York, West Virginia, and Eastern Ohio is a bituminous and not an anthracite region does not of itself confute that theory, as the argument for it is, that the gas may be tapped at a remote distance from the source of supply; and, whereas anthracite is not a gas-coal, while bituminous is, we are told to suppose that the gas which once may have been a component part of the anthracite was long ago expelled by Nature, and has since been held in vast reservoirs with slight waste, awaiting the use of man.
The workable seams of anthracite about Pottsville measure in the aggregate from 70 to 207 feet. Some of the lower seams individually attain an exceptional thickness, that at Lehigh Summit mine containing a seam, or rather a bed, of 30 feet of good coal. A remarkable seam of coal has given the town of Pittsburg its name.
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