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 encyclopdiaofa02loud Year: 1831 602 PRACTICE OF AGRICULTURE. Part III. i^^Q of flag-stones or
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 encyclopdiaofa02loud Year: 1831 602 PRACTICE OF AGRICULTURE. Part III. i^^Q of flag-stones or cast-iron plates on a bed of mortar. {Jig. 359.) When this mode is adopted in the streets of cities, the gas and water pipes (a) may be placed in drains, covered with large blocks of granite (b), channelled on the surface to prevent horses from slipping. Access to the pipes might be had by simply lifting these stones, without disturbing any other part of the pavement. (Gard. Mag. vol. V. p. 79.) 3720. George Knight has suggested the idea of placing the paving stones with the broadest surface undermost, on a Macadamized foundation ; and some streets in the metropolis have been so paved. The improvement has been found considerable ; but as the rain- water sinks to the Macadamized stratum, and cannot run off through it for want of drains, the mud still works up to the surface. With adequate under-drainage, or with the stones so compact as that the surface-water would run off instead of running through, this plan would be one of the most perfect which has been suggested. 3721. Colonel Macirone recommends pressure, ' which may be applied in three different stages of the work : first, to harden the ground previously to laying the stones ; secondly, to fix and depress them when laid; thirdly, to equalise and perfect a pavement after it has been some time in use, by applying the pressure only on the protuberant parts. The machine he proposes for the above purpose is similar to a pil
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