Amidst the advantages which have succeeded the peace of Europe, and that of the United States with Great Britain, in a general invigoration of industry among us and in the extension of our commerce, the value of which is more and more disclosing itself to commercial nations, it is to be regretted that a depression is experienced by particular branches of our manufactures and by a portion of our navigation. As the first proceeds in an essential degree from an excess of imported merchandise, which carries a check in its own tendency, the cause in its present extent can not be of very long duration. The evil will not, however, be viewed by Congress without a recollection that manufacturing establishments, if suffered to sink too low or languish too long, may not revive after the causes shall have ceased, and that in the vicissitudes of human affairs situations may recur in which a dependence on foreign sources for indispensable supplies may be among the most serious embarrassments. The depressed state of our navigation is to be ascribed in a material degree to its exclusion from the colonial ports of the nation most extensively connected with us in commerce, and from the indirect operation of that exclusion. Previous to the late convention at London between the United States and Great Britain the relative state of the navigation laws of the two countries, growing out of the treaty of 1794, had given to the British navigation a material advantage over the American in the intercourse between the American ports and British ports in Europe. The convention of London equalized the laws of the two countries relating to those ports, leaving the intercourse between our ports and the ports of the British colonies subject, as before, to the respective regulations of the parties. The British Government enforcing now regulations which prohibit a trade between its colonies and the United States in American vessels, whilst they permit a trade in British vessels, the American navigation loses accordingly, and the loss is augmented by the advantage which is given to the British competition over the American in the navigation between our ports and British ports in Europe by the circuitous voyages enjoyed by the one and not enjoyed by the other. The reasonableness of the rule of reciprocity applied to one branch of the commercial intercourse has been pressed on our part as equally applicable to both branches; but it is ascertained that the British cabinet declines all negotiation on the subject, with a disavowal, however, of any disposition to view in an unfriendly light whatever countervailing regulations the United States may oppose to the regulations of which they complain. The wisdom of the Legislature will decide on the course which, under these circumstances, is prescribed by a joint regard to the amicable relations between the two nations and to the just interests of the United States.