Herewith I inclose, for constitutional action of the Senate thereon should it approve the same, supplemental articles of agreement made and concluded with the authorities of the Delaware Indians on the 21st July last, with a view to the abrogation of the sixth article of the treaty of May 30, 1860.

In compliance with the resolutions of the Senate of the 17th and 18th February, 1858, requesting information upon the subject of the Aves Island, I transmit a report from the Secretary of State and the documents which accompanied it.

I have to state that all the information within my possession or power on these subjects was communicated to the House by the Secretary of the Treasury on the 21st instant, and was prepared under the resolution above referred to and a resolution of the same date addressed to himself.

There is but one mode left of settling the dispute, and that is by submitting it to the arbitration of some friendly and impartial power.

I am convinced that it is ours by the treaty fairly and impartially construed.

Before accepting this proposition I have thought it right to take the advice of the Senate.

The principle of the liability of Paraguay having been established by the highest political acts of the United States and that Republic in their sovereign capacity.

After due deliberation, Congress, on the 2d of June, 1858, authorized the President 'to adopt such measures and use such force as in his judgment may be necessary and advisable' in the premises.

It does not appear to me to be competent for commissioners authorized to ascertain the indemnity for the injury to go behind their authority and decide upon the original merits of the claim for which the war was made.

A demand for these purposes will be made in a firm but conciliatory spirit.

Governments may be, and doubtless often have been, wrong in going to war to enforce claims.

an extraordinary occasion requires the Senate of the United States to convene for the transaction of business at the Capitol, in the city of Washington, on the 4th day of March next, at 12 o'clock at noon on that day, of which all who shall at that time be entitled to act as members of that body are hereby required to take notice.

Their letter to him urging this delay bears date January 15, and was the commencement of a correspondence.

He was, however, induced by the interposition of Hon. Jefferson Davis and nine other Senators from the seceded and seceding States not to deliver it on the day appointed.

I deemed it a duty to transmit to Congress with my message of the 8th of January the correspondence which occurred in December last between the \commissioners\" of South Carolina and myself.

It affords me great satisfaction to perform this duty.

I feel quite confident that Congress will bestow upon these resolutions the careful consideration to which they are eminently entitled.

Neither the Government nor the citizens in whose behalf the convention has been concluded have any further claims upon the island of Aves.