4thly. It may be observed, that though it might by no means be advisable to commence an artificial system of regulations in the trade of corn; yet if, by such a system already established and other concurring causes, the prices of corn and of many commodities had been raised above the level of the rest of Europe, it becomes a different question, whether it would be advisable to risk the effects of so great and sudden a fall in the price of corn, as would be the consequence of at once throwing open our ports. One of the cases in which, according to Dr Smith, "it may be a matter of deliberation how far it is proper to restore the free importation of foreign goods after it has been for some time interrupted, is, when particular manufactures, by means of high duties and prohibitions upon all foreign goods which can come into competition with them, have been so far extended as to employ a great multitude of hands.(2*)" That the production of corn is not exempted from the operation of this rule has already been shown; and there can be no doubt that the interests of a large body of landholders and farmers, the former to a certain extent permanently, and the latter temporarily, would be deeply affected by such a change of policy. These persons too may further urge, with much appearance of justice, that in being made to suffer this injury, they would not be treated fairly and impartially. By protecting duties of various kinds, an unnatural quantity of capital is directed towards manufactures and commerce and taken from the land; and while, on account of these duties, they are obliged to purchase both home-made and foreign goods at a kind of monopoly price, they would be obliged to sell their own at the price of the most enlarged competition. It may fairly indeed be said, that to restore the freedom of the corn trade, while protecting duties on various other commodities are allowed to remain, is not really to restore things to their natural level, but to depress the cultivation of the land below other kinds of industry. And though, even in this case, it might still be a national advantage to purchase corn where it could be had the cheapest; yet it must be allowed that the owners of property in land would not be treated with impartial justice. If under all the circumstances of the case, it should appear impolitic to check our agriculture; and so desirable to secure an independent supply of corn, as to justify the continued interference of the legislature for this purpose, the next question for our consideration is; Fifthly, how far and by what sacrifices, restrictions upon the importation of foreign corn are calculated to attain the end in view.