I communicate herewith a report of the Secretary of War, together with the accompanying documents, in compliance with the resolution of the Senate of the 25th April, requesting the President to cause to be sent to the Senate a copy of the opinion of the Attorney-General, with copies of the accompanying papers, on the claim made by the Choctaw Indians for $5,000, with interest thereon from the date of the transfer, being the difference between the cost of the stock and the par value thereof transferred to them by the Chickasaws under the convention of the 17th of January, 1837. JAMES K. POLK. WASHINGTON, _May 9, 1848_. _To the Senate of the United States_: In answer to the resolution of the Senate of the 8th instant, requesting further information in relation to the condition of Yucatan, I transmit herewith a report of the Secretary of the Navy, with the accompanying copies of communications from officers of the Navy on the subject. JAMES K. POLK. WASHINGTON, _May 9, 1848_. _To the Senate of the United States_: I herewith communicate to the Senate, for their consideration with a view to its ratification, a convention for the extension of certain stipulations[19] contained in the treaty of commerce and navigation of August 27, 1829, between the United States and Austria, concluded and signed in this city on the 8th instant by the respective plenipotentiaries. JAMES K. POLK. [Footnote 19: Relating to disposal of property, etc.] WASHINGTON, _May 15, 1848_. _To the Senate of the United States_: I communicate herewith a report from the Secretary of the Navy, together with the accompanying documents, in compliance with the resolution of the Senate of the 13th instant, requesting information as to the measures taken for the protection of the white population of Yucatan by the naval forces of the United States. JAMES K. POLK. WASHINGTON, _May 19, 1848_. _To the Senate and House of Representatives of the United States_: I transmit for the information of Congress a communication from the Secretary of War and a report from the Commissioner of Indian Affairs, showing the result of the settlement required by the treaty of August, 1846, with the Cherokees, and the appropriations requisite to carry the provisions of that treaty into effect. JAMES K. POLK. WASHINGTON, _May 29, 1848_. _To the Senate and House of Representatives of the United States_: