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white turf-ashes, have been found useful; redturf ashes useless, and generally hurtful. Wood-ashes have also been employed advantageouslyin many cases; they contain either the four pri-mitive earths, as Mr. Bergman asserts; or cal-careous earth chiefly, according to Acliard; orcalcareous and magnesia, according to D’Arcet.They also contain some proportion of phospho-rated selenite, i. e. calcareous earth united tothe phosphoric acid. Almost all contain alsoa small and variable proportion of commonsalt, Glauber’s salt, and terrene salts, which,when in a small dose, all accelerate putrefac-tion ; also small bits of charcoal.

Charcoal is a substance well known ; it hasfrequently and successfully been used as a ma-nure. 1st Young’s Annals, 152, &c. &c.

Soap-boilers Waste forms an excellent ma-nure for some soils; it contains, by Mr. Ruc-kert’s Analysis, 57 per cwt. of mild calx, 11 ofmagnesia, 6 of argill, and 21 of silex.

Stable Dang. This is used either fresh orputrefied; the first is called long, the othershort dung; it abounds in animal matter, easilyruns into putrefaction, and when putrefied