William Lewis Herndon, Lieutenant, U.S.N., Exploration of the Valley of the Amazon… (1853)
“ The greatest boon in the wide world of commerce is in the free navigation of the Amazon, its confluents and neighboring streams. The back-bone of South America is in sight of the Pacific. The slopes of the continent look east; they are drained into the Atlantic, and their rich productions, in vast variety and profusion, may be emptied into the commercial lap of that ocean by the most majestic of water-courses. ”
