This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1848 Excerpt: ...in a tabular form, as follows, viz: --1 Water of absorption, 2 Soluble vegetable matter, 3 Insoluble do. do. 4 Silex & silicates insoluble," 5 Oxide of iron and alumina," 10 do. soda and loss," The question whether the earths and alkalies were principally carbonates or not, will be determined by the amount of ...
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1848 Excerpt: ...in a tabular form, as follows, viz: --1 Water of absorption, 2 Soluble vegetable matter, 3 Insoluble do. do. 4 Silex & silicates insoluble," 5 Oxide of iron and alumina," 10 do. soda and loss," The question whether the earths and alkalies were principally carbonates or not, will be determined by the amount of effervescence when the muriatic acid is added in the first part of the analysis. The immediate fertility of any soil will depend principally on the quantity of soluble vegetable matter and salts of lime, potash, magnesia, &c., which it contains. Its capability of being made fertile by proper cultivation, will depend, also, on the quantity of insoluble vegetable matter and alumina." An analysis sufficient for most practical purposes, would consist in taking 100 grains of soil, well dried, place it in a crucible and heat it to redness until all the vegetable and animal matters are burned off. Weigh it carefully, and the loss will indicate the quantity of organic matter. Put the burned earth into four drachms of diluted muriatic acid. Boil it half an hour, and throw the whole on a filter, and continue to add warm water until it comes through the filter colorless and tasteless. Then dry the contents of the filter and weigh again. The quantity Is it necessary for practical purposes to separate the potash and soda? Why? How may the result of the analysis be stated? How can you tell whether the earths and alkalies were principally carbonates? Upon what will the immediate fertility of any soil depend? Upon what its capability of being made fertile? How may an analysis sufficient for most practical purposes be made? will show the amount of silex and insoluble silicates, or, as Dr. Dana calls it, granitic sand; and the loss will indica...
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