Our road for some time lay through the valley of Kenawha, through which runs the river of that name--a strong, clear stream. It is hemmed in by mountains on each side of it; and here, perhaps, is presented the most curious varieties of mineral produce that ever were combined in one locality. The river runs over a bed of horizontal calcareous strata, and by perforating this strata about forty or fifty feet below the level of the river, you arrive at salt-springs, the waters of which are pumped up by small steam-engines, and boiled down into salt in buildings erected on the river's banks. The mountains which hem in the river are one mass of coal; a gallery is opened at that part of the foot of the mountain most convenient to the buildings, and the coal is thrown down by shoots or small railways. Here you have coal for your fuel; salt water under fresh; and as soon as the salt is put into the barrels (which are also made from the mountain timber), the river is all ready to transplant them down to Ohio. But there is another great curiosity in this valley: these beds of coal have produced springs, as they are termed, of carburetted hydrogen gas, which run along the banks of the river close to the water's-edge. The negroes take advantage of these springs when they come down at night to wash clothes; they set fire to the springs, which yield them sufficient light for their work. The one which I examined was dry, and the gas bubbled up through the sand. By kicking the sand about, so as to make communications after I had lighted the gas, I obtained a very large flame, which I left burning.
The heat, as we ascended, was excessive, and the passengers availed themselves of every spring, with the exception of those just described, that they fell in with on the route. We drank of every variety of water excepting pure water--sometimes iron, sometimes sulphur; and, indeed, every kind of chalybeate, for every rill was impregnated in some way or another. At last, it occurred to me that there were such things as chemical affinities, and that there was no saying what changes might take place by the admixture of such a variety of metals and gases, so drank no more. I did not like, however, to interfere with the happiness of others, so I did not communicate my ideas to my fellow-passengers, who continued drinking during the whole day; and as I afterwards found out, did not sleep very well that night; they were, moreover, very sparing in the use of them the next day.