Herewith I transmit to the Senate, for its consideration with a view to ratification, a convention between the United States and His Majesty the King of Denmark for the discontinuance of the Sound dues, signed in this city on the 11th day of April last. JAMES BUCHANAN. WASHINGTON, _December 10, 1857_. _To the Senate and House of Representatives_: I transmit a copy of a letter of the 30th of May last from the commissioner of the United States in China, and of the decree and regulation which accompanied it, for such revision thereof as Congress may deem expedient, pursuant to the sixth section of the act approved the 11th of August, 1848. JAMES BUCHANAN. WASHINGTON, _December 17, 1857_. _To the Senate of the United States_: I transmit to the Senate, for its consideration with a view to ratification, a convention for the mutual delivery of criminals fugitives from justice in certain cases, and for other purposes, concluded at The Hague on the 21st day of August last, between the United States and His Majesty the King of the Netherlands. The instrument in this form embodies the Senate's amendments of the 16th of February last to the convention between the same parties of the 29th of May, 1856, and is in fact a mere copy of that instrument as amended by the Senate. Pursuant to the usual course in such cases, the Senate's amendments were not included in the text of the United States exchange copy of the convention, but appeared in the act of ratification only. As the Dutch Government objected to this, it is now proposed to substitute the new convention herewith submitted. JAMES BUCHANAN. WASHINGTON, _December 22, 1857_. _To the Senate of the United States_: In answer to resolutions of the Senate of the 16th and 18th instant, requesting correspondence and documents relative to the Territory of Kansas, I transmit a report from the Secretary of State and the papers by which it was accompanied. JAMES BUCHANAN. WASHINGTON, _December 23, 1857_. _To the Senate of the United States_: I herewith transmit to the Senate a communication, dated on the 22d instant, with the accompanying papers, received from the Department of State, in compliance with a resolution adopted by the Senate on the 17th instant, requesting the President, if compatible with the public interest, to communicate to that body copies of any correspondence which may have taken place between the Department of State and the British and French ministers on the subject of claims for losses alleged to have been sustained by subjects of Great Britain and France at the bombardment of Greytown. JAMES BUCHANAN. WASHINGTON, _December 29, 1857_. _To the Senate of the United States_: Herewith I transmit a report of the Secretary of State, with accompanying documents,[1] in compliance with the resolution of the Senate of the 18th instant. JAMES BUCHANAN.