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Updated: May 15, 2025
The six gases which still proved intractable, and which hence came to be spoken of as "permanent gases," were nitrous oxide, marsh gas, carbonic oxide, oxygen, nitrogen, and hydrogen. These six refractory gases now became a target for the experiments of a host of workers in all parts of the world.
At the first entrance of this valley, the ground is moist and furrowed, as if rivulets had formerly winded through it. The borders of these furrows were covered with many beds, and thickly spread over with a nitrous kind of ice. The rocks, which served to enclose them, were covered with the same, and had a near resemblance to cascades.
The exact processes or reactions are of course much more complicated, but the above represents what is practically the ultimate result. It is evident that the gases leaving the last lead chamber in which the formation of vitriol is effected, must still contain nitrous fumes, and it becomes a matter of importance to recover them, so that they can be used over again.
Continuing his description of these experiments, he says: "The flame of the candle, besides being larger, burned with more splendor and heat than in that species of nitrous air; and a piece of red-hot wood sparkled in it, exactly like paper dipped in a solution of nitre, and it consumed very fast; an experiment that I had never thought of trying with dephlogisticated nitrous air.
The gas obtained during the solution of the metal in the acid, and during the decomposition of the white solid by heat, was the same as a gas which had been prepared by Priestley and called by him nitrous air; and the gas obtained by heating the red precipitate was found to be oxygen.
But what faces these young folks make up at my good advice! They get tipsy on their rhymes. Nothing intoxicates one like his or her own verses, and they hold on to their metre-ballad-mongering as the fellows that inhale nitrous oxide hold on to the gas-bag." We laughed over this essay of the old Professor; though it hit us pretty hard.
"You need have no fear," said Elmer, bringing up his iron box of nitrous oxide, and selecting a pair of forceps from the mass of instruments in one of his trunks. "It's very odd. It's the merest chance that I happened to have a pair of forceps. Are you ready now? Put this tube in your mouth, and breathe easily and naturally."
The engineer hoped to find in the products of succeeding years some analogy with those of Switzerland, to which this nitrous substance is, as we know, a source of perpetual riches. The plantations along the roads, sufficiently moistened by the water allowed to run through the ditches, made rapid growth.
But what faces these young folks make up at my good advice! They get tipsy on their rhymes. Nothing intoxicates one like his or her own verses, and they hold on to their metre-ballad-mongering as the fellows that inhale nitrous oxide hold on to the gas-bag." We laughed over this essay of the old Professor; though it hit us pretty hard.
The aquafortis vessel to be outside the dye-house, or, if inside, to be provided with a funnel to carry away the nitrous fumes, as it is dangerous to other colors. Preparation or mordant for eight dresses, silk and wool mixed, for black. 4 lb. Copperas. ½ " Bluestone. ½ " Tartar. If very heavy, run through lukewarm water slightly acidulated with vitriol, rinse, hydro-extract, and hang in stove.
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