To the President.
Sir: In compliance with the notice heretofore given and communicated to Congress at its last session, I have the honor herewith to transmit the second part of the Report of the "Exploration of the Valley of the Amazon, made under the direction of the Navy Department, by William Lewis Herndon and Lardner Gibbon, lieutenants of the United States Navy."
The first part of the exploration referred to was transmitted to Congress by the Executive on the 9th of February, 1853, and has been printed. (See "Senate Executive No. 36, 32d Congress, 2d session.") The second part, which completes the report, is the result of the labors of Lieutenant Lardner Gibbon, after his separation at Tarma, on the 20th June, 1851, from Lieutenant Herndon, the senior officer of the exploring party.
I have the honor to be, with the highest consideration, your obedient servant,
J. C. DOBBIN.
Washington, D. C., February 7, 1854.
Sir: I have the honor to submit, herewith, a report of an exploration of the countries drained by certain tributaries of the Amazon, made by Lieutenant Gibbon during the years 1851-'52.
It will be recollected by the department that, at Tarma, in Peru, I divided my party, and confided a portion of it to Mr. Gibbon's direction. This report is the result of Mr. Gibbon's labors consequent upon that division, and will form Part II of the "Exploration of the Valley of the Amazon."