do no more than compensate such extraordinary expense, are in reality regulated by the rent and profit of those common crops.

It sometimes happens, indeed, that the quantity of land, which can be fitted for some particular produce, is too small to supply the effectual demand.

The whole produce can be disposed of to those who are willing to give somewhat more than what is sufficient to pay the whole rent, wages, and profit necessary for raising and bringing it to market, according to their natural rates, or according to the rates at which they are paid in the greater part of other cultivated land. The surplus part of the price which remains after defraying the whole expense of improvement and cultivation may commonly, in this case, and in this case only, bear no regular proportion to the