. The American farmer's instructor, or, Practical agriculturist [microform] : comprehending the cultivation of plants, the husbandry of the domestic animals, and the economy of the farm, together with a variety of information which will be found important to the farmer. Agriculture; Pennsylvania imprints; Pennsylvania imprints; Pennsylvania imprints. •v. i « ft ?•".*.. 28 MANURES. the name of Geiiie. When wet, it is a gelatinous mass, which, on drying, be- comes of a deep brown, or almost black colour, without taste or smell, and insoluble in water; and therefore, in this state, incapable
. The American farmer's instructor, or, Practical agriculturist [microform] : comprehending the cultivation of plants, the husbandry of the domestic animals, and the economy of the farm, together with a variety of information which will be found important to the farmer. Agriculture; Pennsylvania imprints; Pennsylvania imprints; Pennsylvania imprints. •v. i « ft ?•".*.. 28 MANURES. the name of Geiiie. When wet, it is a gelatinous mass, which, on drying, be- comes of a deep brown, or almost black colour, without taste or smell, and insoluble in water; and therefore, in this state, incapable of being absorbed by the roots of plants. Yet, after the action of alkalies upon it, it assumes the cha- racter of an acid, and unites with ammonia, potassa, lime, alumina, &c,, and forms a class of bodies called Geates, whiqh are soluble in water, and therefore capable of being taken up by plants. And it is in this state of geates, that this substance for the most part exists in the soi].—Economical Geogrcwh. of Massachusetts, by Edward Hitchcock, Esq. The statements of Berzelius, though highly interesting in a theoretical point of view, afford very little light, and conse- quently but little information to the practical agriculturist. Those of Dr. Samuel J. Dana appear fhv more important, in a scientific as well as a practical view of the subject, notwith- standing they essentially coincide with those European che- mists as far as they have gone.* "This method of analysis, derived from his researches, I must say, after having made extensive application of it t* our soils, is simple and elegant— and, taken in connexion with his preliminary remarks—it ap- pears to me to be a most important contribution to agricultural chemistry, and promises much for the advancement of practical agriculture, ^^t By Geine, says Dr. Dana, I mean all the decomposed organic matter of the .soil. It results chiefly from vegetable decomposition—animal substances pro- duc
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Keywords: ., bookcentury1800, bookdecade1840, booksubj, booksubjectagriculture
