sell at the same price, though they cannot so well afford it, and though it always diminishes, and sometimes takes away altogether both their rent and their profit.

Some works are abandoned altogether; others can afford no rent, and can be wrought only by the proprietor.

The lowest price at which coals can be sold for any considerable time is, like that of all other commodities, the price which is barely sufficient to replace, together with its ordinary profits, the stock which must be employed in bringing them to market. At as coal-mine for which the landlord can get no rent, but which he must either work himself or let it alone altogether, the price of coals must generally be nearly about this price.

Rent, even where coals afford one, has generally a