As the term limited for the operation of the commercial convention with Great Britain will expire early in the month of July next, and it was deemed important that there should be no interval during which that portion of our commerce which was provided for by that convention should not be regulated, either by arrangement between the two Governments or by the authority of Congress, the minister of the United States at London was instructed early in the last summer to invite the attention of the British Government to the subject, with a view to that object.  He was instructed to propose also that the negotiation which it was wished to open might extend to the general commerce of the two countries, and to every other interest and unsettled difference between them in the hope that an arrangement might be made on principles of reciprocal advantage which might comprehend and provide in a satisfactory manner for all these high concerns.

I have the satisfaction to state that the proposal was received by the British Government in the spirit which prompted it, and that a negotiation has been opened at London embracing all these objects.  On full consideration of the great extent and magnitude of the trust it was thought proper to commit it to not less than two of our distinguished citizens, and in consequence the envoy extraordinary and minister plenipotentiary of the United States at Paris has been associated with our envoy extraordinary and minister plenipotentiary at London, to both of whom corresponding instructions have been given, and they are now engaged in the discharge of its duties.  It is proper to add that to prevent any inconvenience resulting from the delay incident to a negotiation on so many important subjects it was agreed before entering on it that the existing convention should be continued for a term not less than eight years.

Our relations with Spain remain nearly in the state in which they were at the close of the last session.  The convention of 1802, providing for the adjustment of a certain portion of the claims of our citizens for injuries sustained by spoliation, and so long suspended by the Spanish Government, has at length been ratified by it, but no arrangement has yet been made for the payment of another portion of like claims, not less extensive or well founded, or for other classes of claims, or for the settlement of boundaries.  These subjects have again been brought under consideration in both countries, but no agreement has been entered into respecting them.

In the mean time events have occurred which clearly prove the ill effect of the policy which that Government has so long pursued on the friendly relations of the two countries, which it is presumed is at least of as much importance to Spain as to the United States to maintain.  A state of things has existed in the Floridas the tendency of which has been obvious to all who have paid the slightest attention to the progress of affairs in that quarter.  Throughout