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To throw them overboard would have been but a small relief, as they would probably add to the impurities of the boiler, by being deposited in it the first time it was filled up for cooking our unsavory mess. What then was to be done with them? A general consultation was held, and it was determined to deprive them of their liberty.
If made by the ammonia process it may contain also sodium chloride, sulphate, and hydroxide; when made by the Le Blanc process it may contain sodium sulphide, silicate, and aluminate, and other impurities.
It seems all the drains and sewers of the place run into that same salt bason, voiding into it all their impurities, which, not being able to escape into the sea in any considerable quantity, owing to the narrowness of the entrance, there accumulate, filling the whole atmosphere with these same outrageous scents, on which account the town is a famous lodging-house of the plague.
It is to the parasites of tuberculosis and cancers that I devote myself, and for seven years, that is, since I was house-surgeon, my comrades have called me the cancer topic. I have discovered the parasite of the tuberculosis, but I have not yet been able to free it from all its impurities by the process of culture. I am still at it.
But when a great telescope of two feet aperture or upward is to be constructed, very delicate and laborious operations have to be undertaken. The outside of the glass has first to be chipped off, because it is filled with impurities from the material of the pot itself. But this is not all.
In fact, some creameries separate milk, only to mix milk and cream again, largely for the purpose of removing the impurities found in the slime.
Such mordants as "red liquor" and "iron liquor," which are acetates of alumina and iron respectively, are also wasted, a portion of them being precipitated by the lime, thus weakening the mordant baths. Ferruginous Impurities in Water. Iron in solution in water is very objectionable in dyeing operations.
We will suppose that about half of them are what might be called well-educated people, who have learned in books, or otherwise, that the air breathed from the lungs is laden with impurities, that it is noxious and poisonous; and yet, travel with these people half a day, and you would suppose from their actions that they considered the external air as a poison created expressly to injure them, and that the only course of safety lay in keeping the cars hermetically sealed, and breathing over and over the vapor from each others' lungs.
When the lumps of ore are dry, they are crushed in iron mortars, and repeatedly washed and heated until the impurities are gone, and the colours come. When the cinnabar has given up its quicksilver, and thus lost the natural virtues that it previously had, it becomes soft in quality and its powers are feeble.
And it is the impurities on the quicksilver that keep us from coalescing. So then we have to school ourselves into greater conformity to the likeness of our Master, to conquer selfishness, and to purify our souls, or else all this talk about Christian unity is no better than sounding brass, and more discordant than tinkling cymbals. Let us learn the lesson.
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