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. 1887 edition. Excerpt: ... first with a layer of quick-lime of equal depth, and then with a layer of loam. Other similar layers are piled above the first series until the heap has been built up to a convenient size, when it is covered with a thick layer of earth. Holes are then pierced in the heap, and water poured in to slake the lime ...
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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. 1887 edition. Excerpt: ... first with a layer of quick-lime of equal depth, and then with a layer of loam. Other similar layers are piled above the first series until the heap has been built up to a convenient size, when it is covered with a thick layer of earth. Holes are then pierced in the heap, and water poured in to slake the lime. As much lime is taken as will amount to about twice the bulk of the bones. Vol. i.--17 A. heap of this sort which contained some 8,000 lb. of all sorts of bones remained very hot for eight weeks, and in active fermentation; the heat coming not only from the action of the water upon the lime, but from the action of the lime upon the bones. When the fermentation ceases, the bones are said to be found in a brittle, friable condition, and the heap is finally shovelled over in order to mix the materials. Peters reported, some years since, that he obtained good results by composting bones with a mixture of quick-lime and sulphate of potash. The whole subject of reducing bones with quicklime and Stassfurt potash salts, notably the muriate of potash, deserves to be studied at the farm. Phosphate of Lime of the Gelatine Makers. In Europe, large quantities of bones are treated every year with muriatic acid for the purpose of obtaining their ossein, as a preliminary step in the manufacture of gelatine. In this case the earthy matter of the bones is actually dissolved out from the ossein by means of weak muriatic acid. The method is applied particularly to horn-piths, and to other bones which expose a large surface for the action of the acid, --notably to the thin waste slices of bone from which buttons have been cut. To the clear solution of phosphate of limo in muriatic acid thus obtained, enough milk of lime is added to neutralize the acid and..
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Seller's Description:
Volumes 1 & 2. This is an ex-library book and may have the usual library/used-book markings inside. This book has hardback covers. In fair condition, suitable as a study copy. No dust jacket. Re-bound by library. Full cloth covers. Covers slightly faded. Gilt lettering on backstrip. Dusty page edges. Some pencil markings internally. Internally tight and clean. Please note the Image in this listing is a stock photo and may not match the covers of the actual item, 1650grams, ISBN: