Correspondence in relation to an interoceanic canal between the Atlantic and Pacific Oceans, the Clayton-Bulwer Treaty and the Monroe Doctrine, and the Treaty between the United States and New Granada of December 12, 1846, comprising a reprint of Senate Ex. Docs. No. 112, 46th Congress, 2d session; No. 194, 47th Congress, Ist session; and No. 26, 48th Congress, Ist session; and correspondence not heretofore communicated to Congress. [electronic resource]