After the termination of the late war this interdiction had been revived, and the British Government declined including this portion of our intercourse with her possessions in the negotiation of the convention of 1815. The trade was then carried on exclusively in British vessels ’til the act of Congress, concerning navigation, of 1818 and the supplemental act of 1820 met the interdict by a corresponding measure on the part of the United States. These measures, not of retaliation, but of necessary self defense, were soon succeeded by an act of Parliament opening certain colonial ports to the vessels of the United States coming directly from them, and to the importation from them of certain articles of our produce burdened with heavy duties, and excluding some of the most valuable articles of our exports. The United States opened their ports to British vessels from the colonies upon terms as exactly corresponding with those of the act of Parliament as in the relative position of the parties could be made, and a negotiation was commenced by mutual consent, with the hope on our part that a reciprocal spirit of accommodation and a common sentiment of the importance of the trade to the interests of the inhabitants of the two countries between whom it must be carried on would ultimately bring the parties to a compromise with which both might be satisfied. With this view the Government of the United States had determined to sacrifice something of that entire reciprocity which in all commercial arrangements with foreign powers they are entitled to demand, and to acquiesce in some inequalities disadvantageous to ourselves rather than to forego the benefit of a final and permanent adjustment of this interest to the satisfaction of Great Britain herself. The negotiation, repeatedly suspended by accidental circumstances, was, however, by mutual agreement and express assent, considered as pending and to be speedily resumed. In the mean time another act of Parliament, so doubtful and ambiguous in its import as to have been misunderstood by the officers in the colonies who were to carry it into execution, opens again certain colonial ports upon new conditions and terms, with a threat to close them against any nation which may not accept those terms as prescribed by the British Government. This act, passed July, 1825, not communicated to the Government of the United States, not understood by the British officers of the customs in the colonies where it was to be enforced, was never the less submitted to the consideration of Congress at their last session. With the knowledge that a negotiation upon the subject had long been in progress and pledges given of its resumption at an early day, it was deemed expedient to await the result of that negotiation rather than to subscribe implicitly to terms the import of which was not clear and which the British authorities themselves in this hemisphere were not prepared to explain.