I transmit to the Senate, for consideration with a view to ratification, a treaty of friendship and commerce between the United States and Nicaragua, signed by their respective plenipotentiaries at Managua on the 16th March last, together with papers explanatory of the same, of which a list is herewith furnished. I invite attention especially to the last document accompanying the treaty, being a translation of a note of 26th September ultimo from Mr. Molina, chargé d'affaires _ad interim_ of Nicaragua, to the Secretary of State, together with the translation of the ratification of the treaty by the Nicaraguan Government, thereto annexed. The amendment stipulated in the second article of the decree of ratification by Nicaragua is in conformity with the views of this Government, to which the omitted clause was obnoxious, as will be seen by reference to the note of the Secretary of State to Mr. Trisarri of 26th May, 1859, a copy of which is among the documents referred to. JAMES BUCHANAN. WASHINGTON, _December 19, 1859_. _To the Senate of the United States_: I transmit to the Senate, with a view to ratification, the special convention concluded at Asuncion on the 4th of February last between the plenipotentiaries of the United States and Paraguay, providing for the settlement of the claims of the United States and Paraguay Navigation Company. JAMES BUCHANAN. WASHINGTON, _January 4, 1860_. _To the Senate of the United States_: I transmit to the Senate, for consideration with a view to ratification, a "treaty of transits and commerce between the United States of America and the Mexican Republic," and also a "convention to enforce treaty stipulations" between the same parties, both of which were signed by the plenipotentiaries of the respective Governments at Vera Cruz on the 14th December ultimo. I also transmit a copy of a dispatch of the minister of the United States accredited to the Mexican Government to the Secretary of State, relative to these instruments. JAMES BUCHANAN. WASHINGTON, _January 10, 1860_. _To the Senate of the United States_: I transmit herewith, for your constitutional action thereon, articles of agreement and convention made and concluded on the 5th day of October, 1859, with the Kansas, and recommend that the same be ratified. JAMES BUCHANAN. WASHINGTON, _January 10, 1860_. _To the Senate of the United States_: I transmit herewith, for your constitutional action thereon, articles of agreement and convention made and concluded on the 1st day of October, 1859, with the Sacs and Foxes of the Mississippi, and recommend that the same be ratified. JAMES BUCHANAN. WASHINGTON, _January 10, 1860_. _To the Senate of the United States_: I transmit herewith, for your constitutional action thereon, articles of agreement and convention made and concluded on the 15th day of April, 1859, with the Winnebagoes, and recommend that the same be ratified. JAMES BUCHANAN. WASHINGTON, _January 12, 1860_.