An encyclopædia of agriculture [electronic 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 encyclopdiaofa01loud Year: 1831 bottom. The stones to be broken are laid on a circular baseme
An encyclopædia of agriculture [electronic 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 encyclopdiaofa01loud Year: 1831 bottom. The stones to be broken are laid on a circular basement, founded at some depth below the surface, the foundation of which is prepared in the following manner : — 'A stratum is formed of clay, well tempered, and mixed with a proportion of burnt limestone, powdered without being slacked, and forge ashes beat very small. When this is properly dried, a bed of sand, about eighteen inches in thickness, should be laid above it, and paved with common paving stones of the kind used for streets : this, after being well beat down, should be covered with another bed of sand of the same thickness, which should be paved in the same manner, and afterwards well beat down. The foundation of the building should be, at least, six feet below the common surface; which will allow eighteen inches for the clay, thirty-six inches for the two beds of sand, and eighteen inches for the two courses of pavement. The circumference should consist entirely of hewn stone, at least the uppermost three feet of it; the stones of which should be strongly batted together with iron, and secured on the outside with numerous wooden posts driven into the earth, and different courses of pavement, extending at least six feet all round, carefully laid, and well beat down. A floor prepared in this manner, if it is not used too soon, will resist any force that can be let fall upon it. The limestone laid into it should not be too small, and should have a light bedding of sa
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