In the northern and eastern states, the tariff policy has no opponents, except in the merchants engaged in foreign commerce; in the western States, the opinion in favour of the present system, is almost unanimous. The southern states, and a portion of the mercantile interest of the north, are alone in direct opposition to protecting duties. The agricultural interest of the north and west, seeing and feeling directly the benefits which the establishment of manufactures confers upon it, has given what is called the American system,--which is in principle, if it err occasionally in detail, the sound and true policy of the nation--its full and undivided support. We cannot but hope to see the day arrive, when the mist raised by designing politicians, and _soi disant_ economists, shall be dissipated, and when the southern states will see that they are not merely indirectly, but as directly benefited by the creation of manufacturing industry in the northern districts of the Union, as they have been by that part of the system which has secured them a complete monopoly of the home market for their own products. Of all the states of the Union, Louisiana has derived the most immediate and important advantages from protecting duties, but they have also been shared by her neighbours; and we cannot hesitate to conclude, that, next to Louisiana, South Carolina has been most benefited. The cotton of India, which would have been preferred, from its low price, for the manufacture of the coarse articles with which our factories have in all cases commenced their business, is in fact prohibited; the creation of the growth of sugar has occupied land and capital, which, if applied to the culture of cotton, must have driven the whole upland staple from the markets of the world; and, more than all, a growing domestic demand has arisen, which foreign interference cannot controul or diminish. In return for such advantages, it might fairly have been expected that some burthen would fall upon the southern states, and no doubt it might appear to be capable of plausible proof, that a portion of the increased duties amounted to an actual tax. But this appearance on which so much stress has been laid, is only upon paper, and does not exist in reality, for we believe that they may be challenged, and must fail if they attempt, to prove that the cost of the production of any one staple has been in the slightest degree increased. We believe that it has, on the contrary, diminished. It would lead us too far to show how this has been the natural result: we appeal therefore to the fact alone.