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. 1843. Excerpt: ... sprinkle it in the spring upon the young plants already come up, as is done in other cases with the strongest manures and stimulants. Some conclusive experiments have proved that the maceration of oil cakes in water produces a liquid manure of great energy. In the Netherlands, also, they are mixed with the urine of the stables or other animal substances. The dregs of olives, which contain the skin, the parenchyma, and the kernel, however well prepared, even in the improved mills, contain some oil which is extracted by rotting them in cisterns; the mud which is left at the bottoms of these cisterns is an excellent manure, which, however, Bosc affirms is scarcely used in the districts of France where the olive is cultivated. I have seen it used here and there in nurseries and at the roots of each tree in olive yards. For a few years past the attempt has been made to substitute oil itself for the oleaginous cakes. I do not believe that such a practice is to be recommended; for if the cakes produce so good effects upon the soil, it is doubtless to be attributed more to the large quantities of azotized albuminous substance which they contain, than to a certain portion of oil which they retain. Besides, no one can doubt that the question of economy must entirely proscribe the use of oils as manures. CHAPTER XII. MANURES PRODUCED FROM THE HERBAGE OF FRESH WATER. Among the grasses which grow in fresh water, we must distinguish, regard being paid to their use as manures, between those which are decomposed under water and give rise to peat, and those which are taken while green, to be used for the benefit of the soil while in that state. Peat, in this respect, like all substances organic and inorganic which have been used for a long time, withdrawn from immediate c...