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In a paper read before the Aix-la-Chapelle section of the Verein deutscher Ingenieure, Herr Robert Hasenclever presents a summary of the results obtained with various methods for the absorption of the sulphurous acid generated during the roasting of zinc-blende and other sulphurets.
A vague idea had taken possession of my mind that I would see a whole district of country shooting up hot water and sulphurous vapors a kind of hell upon earth; but that thing ahead of us that little curl of smoke on the horizon looked so peaceful, so inadequate a result of great subterranean fires, that I could not but feel some resentment toward the travelers who had preceded me, and whose glowing accounts of the Geysers had deceived me.
That evening our travellers encamped in close proximity to the crater, supped on fowls roasted in an open crevice whence issued steam and sulphurous smells, and slept with the geyser's intermittent roar sounding in their ears and re-echoing in their dreams.
Having witnessed the carrying-out of the sentence, the policeman returned to his duties; none too soon; for a furniture van and a butcher's cart, locked in an inextricable embrace, the subject of a sulphurous duet between their respective proprietors, called loudly for his attention.
Since then I have climbed the cone of Vesuvius, and as I struggled up that dreary steep amid the sulphurous fumes the memory of that awful night at Montrouge came back to me so vividly that I almost grew faint.
But now, instead of emitting jets of flame and streams of sulphurous vapor, they breathed the very sweetest of cow breath. After kindly patting the bulls, Jason followed Medea's guidance into the Grove of Mars, where the great oak trees that had been growing for centuries threw so thick a shade that the moonbeams struggled vainly to find their way through it.
"To-morrow," the heavenly creature had said softly, like a caress, in the woman's ear when an attendant had taken her through the little door into the empty box. But the to-morrow broke with every illusion vanished. The woman sat beside her husband in the dismal court-room when the court convened. The judge, old and tired, was on the bench. A sulphurous, depressing fog entered from the city.
They next walked to the sea to try whether it would admit of vessels being launched, but it was still a waste of raging waters. He then spread a linen cloth, and, reclining on it, asked several times for water, which he drank; soon, however, the flames and that sulphurous vapour which preceded them put his companions to flight and compelled him to arise.
At the sound of her voice, Regina dropped the money back into the drawer, and turned to inspect the elegant toilette, which consisted of gold-coloured silk and Mechlin lace, rich yellow roses with sulphurous hearts, and a very complete set of topaz, which flashed amber rays over the neck, ears, and arms of the wearer.
The reagents available for the reduction of iron are stannous chloride, sulphurous acid, sulphureted hydrogen, and zinc; of these stannous chloride acts most readily, the completion of the reaction is most easily noted, and the excess of the reagent is most readily removed.
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