Gentlemen who are opposed to giving sufficient encouragement to ship-building, ought to recollect an argument that was considered of weight in the case of encouraging manufactures. It is certain that manufactures have been reared up by the fostering care of the State Legislatures, displayed in the shape of protecting duties; but the people, by the adoption of this constitution, have put it out of their power to continue them. The provision for the support of navigation, made by the several States, ought to induce us to suppose even a higher tonnage duty pleasing to them, at least in those States where a higher tonnage duty has been laid. Those States not being able to continue their encouragement, expect that we will attend to their policy, and protect their citizens in the property they were led to acquire under the State regulations. If we disappoint them, they will suffer more than is consistent with good policy. I am not apprehensive that forty cents will be so low as to occasion any discontent. Mr. SMITH, (of South Carolina.)--Gentlemen have endeavored to persuade us, that a high tonnage duty will be beneficial to the Union; but I would as soon be persuaded to throw myself out of a two-story window, as to believe a high tonnage duty was favorable to South Carolina. Gentlemen tell us we are in great want of shipping and a navy--that sufficient encouragement for ship-building must be given before we can expect it; but I think, let the encouragement be what it may, many years will elapse before we have sufficient for the export of our commodities. I know Massachusetts cannot furnish us, because there are adventitious causes to prevent it. The course of the stream in which our navigation has so long flowed, cannot be altered in a day. The debts due from the merchants of that country to the British, will be an insuperable bar. Suppose they should send ships to transport our produce to a foreign market, they have no connections abroad to transact their business, no house in a commercial line to employ in the sales. What are they to bring back in return? They must come in ballast: and will the mere transportation of our crop be a sufficient inducement to engage them to come here? If they had more shipping than they wanted, we should still labor under the same difficulty, and employ foreigners; because the business is unchangeably in their hands, and the very moment the tonnage duty is increased, it will be an inducement to them to raise the price of freight.