iv 



CORRESPONDENCE. 



Washington, D. C, February 7, 1854. 



Sir : I have the honor to submit, herewith, a report of an explora- 

 tion 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." 



I have the honor to be, very respectfully, your obedient servant, 



WM. LEWIS HERNDON, 



Lieutenant U. S. Navy, 



Hon. James C. Dobbin, 



Secretary of the Navy, Washington, 



Washington, D. C, January 25, 1854. 

 Sir : By instructions, a report, accompanied by maps and sketches of 

 scenery in South Peru, Bolivia, and Madeira river, in Brazil, made by 

 me to the Navy Department, is herewith submitted. 

 Very respectfully, your obedient servant, 



LARDNER GIBBON, 

 Lieutenant IT. S. Navy, 



Lieut. William L. Herndon, U. S. N, 



Commanding Amazon Exploring Expedition, Washington. 



