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But in such a soil the phosphorus still remaining may be the most difficultly soluble, and the supply of decaying organic matter may be extremely low, so that possibly less than one pound per acre would become available, and this would meet the needs of less than four hundred pounds per acre of clover hay. Furthermore, the supply grows less and less with every crop removed.
The grains of sandstone are held together by some cement. This may be calcareous, consisting of soluble carbonate of lime. In brown sandstones the cement is commonly ferruginous, hydrated iron oxide, or iron rust, forming the bond, somewhat as in the case of iron nails which have rusted together.
"Chunk," said he, "it is of drugs of that nature that pharmaceutists must have much carefulness. To you alone of my acquaintance would I intrust a powder like that. But for you I shall make it, and you shall see how it makes Rosy to think of you." Ikey went behind the prescription desk. There he crushed to a powder two soluble tablets, each containing a quarter of a grain of morphia.
The washing completely removes all the soluble part of the disintegrated rock; the insoluble part, moreover, cannot undergo any further change while it is covered with water, and so excluded from the influence of the atmosphere at the bottom of the pond.
The vapour may be obtained by distillation, but this process is open to objections to which the other is not. In some cases it becomes changed in the body into formic acid, which should therefore be sought for. Tests. With nitrate of silver a white precipitate, insoluble in cold, but soluble in boiling, nitric acid.
It is a black solid melting at 570 degrees; it is a metallic looking element, will conduct electricity somewhat, oxidizes in air to form an acidic oxide, and forms strong oxygen acids. It is far less active than iodine, except toward oxygen. It is very slightly soluble in water. It does not react readily with hydrogen, and the acid where formed is not as strong as HI."
The slow crumbling of the rocks, and the setting free of those constituents which are soluble, the work of the streams in gathering the rock waste into the lakes, the dry air and the heat of the long summer days, have all conspired together to give us these valuable deposits in the dried-up lakes of the Great Basin. No portion of the earth seems to be without value to man.
Then suddenly looking round for vulgar moneys to purchase the precious gem, and the materials for the soluble elixir, he saw that MONEY had been at work around him, that he had been sleeping softly and faring sumptuously. He was seized with a divine rage. How had Sibyll dared to secrete from him this hoard; how presumed to waste upon the base body what might have so profited the eternal mind?
While the organic matter applied to the soil contains about twenty times as much carbon as nitrogen, and while corresponding amounts of carbonic acid and important amounts of intermediate organic acids must be formed, it is of much interest to know that even the nitric acid formed in the transformation of organic nitrogen to nitrate nitrogen in sufficient quantity for a given crop is seven times as much acid as would be required to convert raw rock phosphate into soluble phosphate to furnish the phosphorus required for the same crop.
In some of them even digestion, or at least the absorption of undecomposed soluble animal juices, may be suspected; but there is no proof of it. But, if pitchers of the Sarracenia family are only macerating vessels, those of Nepenthes the pitchers of the Indian Archipelago, familiar in conservatories seem to be stomachs. The investigations of the President of the Royal Society, Dr.
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