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from ten feet to fifty if required; four or five feet wide at bottom, drawing into a sharp ridge at top four or five feet high; which will allow for settling.
For private use, a single bed of about ten or fifteen feet in length may be fully sufficient. But for the supply of the London markets, long parallel ranges are made, from twenty to fifty feet in length.
Provide therefore a proportionate quantity of the best fresh horse-stable dung and litter, warm and moist, rejecting such as is dry and decayed, and such as has already exhausted its fermenting property. Let this be taken long and short as it comes to hand; and as it is brought in, toss it up together in an heap, carefully mixing, that the whole mass may acquire an equal degree of heat.
