I transmit a copy of the certificate of the exchange of the ratifications of the general convention of peace, amity, commerce, and navigation between the United States and the Republic of San Salvador, signed at Leon, in Nicaragua, on the 2d of January, 1850. It will be seen that the exchange was not effected until the 2d of June last, but that it was stipulated that the convention was not to be binding upon either of the parties thereto until the Senate of the United States should have duly sanctioned the exchange.

The Senate by its resolution of the 27th of September, 1850, authorized the exchange to take place at any time prior to the 1st of April, 1851.

Mr. Kerr, the chargé d'affaires of the United States to Nicaragua, however, who was authorized to make the exchange on the part of this Government, was unavoidably detained in that Republic, in consequence of which the exchange could not be effected within the period referred to.

The expediency of sanctioning the exchange which has been made by Mr. Kerr, and of authorizing the convention to go into effect, is accordingly submitted to the consideration of the Senate.

MILLARD FILLMORE.

WASHINGTON, August 12, 1852.

To the Senate of the United States:

In answer to the resolution of the Senate dated the 20th ultimo, requesting information in regard to controversies between the consul of the United States at Acapulco and the Mexican authorities, I transmit a report from the Secretary of State and the documents by which it was accompanied.

MILLARD FILLMORE.

WASHINGTON, August 13, 1852.