I lay before the Senate a letter of the 12th February, 1848, from N.P. Trist, together with the authenticated map of the United Mexican States and of the plan of the port of San Diego, referred to in the fifth article of the treaty "of peace, friendship, limits, and settlement between the United States of America and the Mexican Republic," which treaty was transmitted to the Senate with my message of the 22d ultimo. JAMES K. POLK. WASHINGTON, _March 8, 1848_. _To the Senate of the United States_: In answer to the resolution of the Senate of this date, requesting the President "to inform the Senate of the terms of the authority given to Mr. Trist to draw for the $3,000,000 authorized by the act of the 2d of March, 1847," I communicate herewith a report from the Secretary of State, with the accompanying documents, which contain the information called for. JAMES K. POLK. WASHINGTON, _March 8, 1848_. _To the Senate of the United States_: In answer to the resolution of the Senate of this date, requesting the President to communicate to that body, "confidentially, any additional dispatches which may have been received from Mr. Trist, and especially those which are promised by him in his letter to Mr. Buchanan of the 2d of February last, if the same have been received," I have to state that all the dispatches which have been received from Mr. Trist have been heretofore communicated to the Senate. JAMES K. POLK. WASHINGTON, _March 10, 1848_. _To the House of Representatives_: I transmit herewith reports from the Secretary of State and the Secretary of War, with the accompanying documents, in compliance with the resolution of the House of Representatives of the 7th February, 1848, requesting the President to communicate to that House "copies of all correspondence between the Secretary of War and Major-General Scott, and between the Secretary of War and Major-General Taylor, and between Major-General Scott and N.P. Trist, late commissioner of the United States to Mexico, and between the latter and Secretary of State, which has not heretofore been published, and the publication of which may not be incompatible with the public interest." JAMES K. POLK. _To the House of Representatives_: I communicate herewith a copy of the constitution of State government formed by a convention of the people of the Territory of Wisconsin in pursuance of the act of Congress of August 6, 1846, entitled "An act to enable the people of Wisconsin Territory to form a constitution and State government, and for the admission of such State into the Union." I communicate also the documents accompanying the constitution, which have been transmitted to me by the president of the convention. JAMES K. POLK. MARCH 16, 1848. WASHINGTON, _March 18, 1848_. _To the Senate of the United States_: