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In like manner silicon-eisen, containing 9 per cent. of silicon, was treated, but not giving so satisfactory a result. A small quantity only of silicon separates in the uncombined form, the greater quantity separating in the form of silica, SiO , the amorphous silicon so obtained apparently being more prone to oxidation than the boron so obtained.
We have not, however, remained satisfied with mere approximation: we have determined accurately, in certain cases, the quantity of carbon taken daily in the food, and of that which passes out of the body in the faeces and urine combined that is, uncombined with oxygen; and from these investigations it appears that an adult man taking moderate exercise consumes 13.9 ounces of carbon, which pass off through the skin and lungs as carbonic acid gas.
"At present we have its uncombined ingredients in the raw noisy wealth and flippant fashion, arrogant intelligence and dowdy breeding all excellent materials, when filtered and fused in the retort; and many of our test tubes have already precipitated pure metal besides, and our national laboratory is turning out fine alloys.
Thus, when Marlborough, at the beginning of June, left the Rhine and marched for the Danube, the numerous hostile armies were uncombined and unable to check him. "With such skill and science," says Coxe, "had this enterprise been concerted that at the very moment when it assumed a specific direction the enemy was no longer enabled to render it abortive.
Besides these, a few of the other elements, as silicon, have been found; but they exist in extremely minute quantities. The following table gives the proportion in which these various elements are present: As will be seen from this table, oxygen, hydrogen, and nitrogen, which are gases in their uncombined form, make up 3/4 of the weight of the whole human body.
Carbon is pure only in the diamond. And the metallic bases of the earths, though the chemist can disengage them, may well be supposed unlikely to remain long uncombined, seeing that contact with moisture makes them burn. Combination and re-combination are principles largely pervading nature.
In spite of this desultory and uncombined opposition from the natives, Valdivia traversed the provinces of Copaipo, Coquimbo, Quillota, and Melipilla, with Very little loss though much harassed, and arrived in the province of Mapocho, now called St Jago. This province, which is more than 600 miles from the confines of Peru, is one of the pleasantest and most fertile in the kingdom.
In his well-known work on "Theism," Professor Flint says "that granting all the atoms of matter to be eternal, grant that all the properties and forces, which with the smallest degree of plausibility can be claimed for them to be eternal and indestructible, and it is still beyond expression improbable that these atoms, with these forces, if unarranged, uncombined, unutilised by a presiding mind, would give rise to anything entitled to be called a universe.
The leaves now commence the process of absorption, and imbibe both uncombined gases and an unascertained but probably inconsiderable quantity of aqueous vapor from the humid atmosphere of spring which bathes them.
The refuse of tanneries such as the ears of oxen and calves are better articles. Animal skins also, in any form, uncombined with tannin, may be worked into glue. Ox-tallow is of great importance in the arts. Candles and soap are made of it, and it enters largely into the dressing of leather and the use of machinery. Large quantities are annually exported from Russia.
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