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Updated: May 15, 2025
The suspension of pain, under dangerous surgical operations, is the greatest triumph of Therapeutic Science in the present century. It came first by mesmeric hypnotism, which was applicable only to a few, and was restricted, by the jealous hostility of the old medical profession. Then came the nitrous oxide, introduced by Dr.
By this it may be seen that the language we have adopted is both copious and expressive. The first or lowest degree of oxygenation in bodies converts them into oxides; a second degree of additional oxygenation constitutes the class of acids of which the specific names drawn from their particular bases terminate in ous, as in the nitrous and the sulphurous acids.
From these experiments he concludes "that when a mixture of inflammable and dephlogisticated air is exploded, in such proportions that the burnt air is not much phlogisticated, the condensed liquor contains a little acid which is always of the nitrous kind, whatever substance the dephlogisticated air is procured from; but if the proportion be such that the burnt air is almost entirely phlogisticated, the condensed liquor is not at all acid, but seems pure water, without any addition whatever."
The water was so nitrous I could not drink it. To quench my thirst, I threw it in gulps down my throat; and rice, when boiled in it, resembled salts and senna. After returning from sport one day, the interpreter brought up one of the camel-drivers, to be punished for having stolen some deer flesh when sent to clean it.
Priestley obtained the same sort of air from red lead, but, as he says himself, he remained in ignorance of the properties of this new kind of air for seven months, or until March 1775, when he found that the new air behaved with "nitrous gas" in the same way as the dephlogisticated part of common air does; but that, instead of being diminished to four-fifths, it almost completely vanished, and, therefore, showed itself to be "between five and six times as good as the best common air I have ever met with."
This hall was so narrow that they were obliged to walk singly. The roof was clustered with nitrous drops and the floor was slippery with moisture. Francis did not know what part of the Tower she was in but she had heard that the whole substructure of the fortress was threaded with subterranean passages which led to different parts of the edifice.
In the case of the rabbit in which nitrous oxid was substituted for sleep, the appearance of the brain-cells resembled that in but one other group experimentally examined the brain-cells of hibernating woodchucks. Insanity.
Creek is the name given by Australian colonists to precarious water Courses and tributary streams. "You may remember," said Julius Faber, "Sir Humphry Davy's eloquent description of the effect produced on him by the inhalation of nitrous oxide.
He observed that the earth in the immediate neighbourhood, and especially above the roof of the grotto, was full of a nitrous or ammoniac salt, and he accordingly suggested that this salt was disturbed by the heat of summer and mingled itself with the water which penetrated by means of fissures to the grotto, and so the cave was affected in the same way as the smaller vessel in the ordinary preparation of artificial ice.
Tanned leather is best cleaned with nitrous acid and salts of lemon diluted with water, and afterwards mixed with skimmed milk. The surface of the leather should first be cleaned with a brush and soft water, adding a little free sand, and then repeatedly scoured with a brush dipped in the nitrous mixture. It is afterwards to be cleaned with a sponge and water, and left to dry.
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