. An encyclopædia of agriculture [electronic resource] : comprising the theory and practice of the valuation, transfer, laying out, improvement, and management of landed property, and the cultivation and economy of the animal and vegetable productions of agriculture, including all the latest improvements, a general history of agriculture in all countries, and a statistical view of its present state, with suggestions for its future progress in the British Isles. Agriculture. 626 PRACTICE OF AGRICULTURE. Part III. 580 times, though seldom, covered with sods or turf, in order to keep the heat as
. An encyclopædia of agriculture [electronic resource] : comprising the theory and practice of the valuation, transfer, laying out, improvement, and management of landed property, and the cultivation and economy of the animal and vegetable productions of agriculture, including all the latest improvements, a general history of agriculture in all countries, and a statistical view of its present state, with suggestions for its future progress in the British Isles. Agriculture. 626 PRACTICE OF AGRICULTURE. Part III. 580 times, though seldom, covered with sods or turf, in order to keep the heat as intense as possible. The fire is then lighted in the apertures ; and when the limestone towards the bottom is completely calcined, the fuel being considerably exhausted, the limestone at the top subsides. The labourers then put in an addi- tion of limestone and coal at the top, and draw out at bottom as much as they find thoroughly burned; and thus go on, till any quantity required be calcined. When limestone is burned with coals, from two busliels and a half to three and a half of calcined 1 mestone are produced for every bushel of coal used. Lime will, in all cases, be most economically burned C^ 579 by fuel which produces little or no smoke ; because ^ the necessary mixture of the fuel with the broken limestone renders it impossible to bring it in contact with a red heat, which may ignite the smoke. Dry fuel must also, in all cases, be more advantageous than moist fuel, because in the latter case a certain quantity of heat is lost in expelling the moisture in the form of vapour or smoke. 3863. Booker's lime-k-iln {fig. 579.) is the best of all forms that have hitherto been brought into notice for burning lime with coke or other dry smokeless fuel. The kiln of this description at Closeburn is built on the side of a bank ; it is circular within, thirty-two feet high from the furnace, three feet in diameter at top and bottom, and seven feet in diameter at eighteen feet from th
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Keywords: ., bookcentury1800, bookpublisherlondonprin, booksubjectagriculture
