Colombia. Correspondence in relation to interoceanic canal between Atlantic and Pacific oceans, Clayton-Bulwer Treaty and Monroe Doctrine, and treaty between United States and New Granada, Dec. 12, 1846; comprising reprint of Senate executive documents 112, 46th Congress, 2d session, 194, 47th Congress, 1st session, aud 26, 48th Cougress, 1st session [and of Senate miscellaneous document 12, 48th Congress, 2d session], and correspondence not heretofore communicated to Congress.

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