Scope and Contents Naturalist and surgeon, he accompanied the U. S. topographical engineers, under Sitgreaves and Woodruff, on the Boundary Survey of the Creek and Cherokee Indian Nations, 1849-50, and again under Sitgreaves, on the Zuni River Expedition in 1851-2. The next year, he was a member of the private enterprise Inter-ocean Canal, Railroad and Mining Company's Expedition to Nicaragua and Honduras. In 1859-60 while surgeon on Cope's Line of Packets running between Philadelphia and Liverpool, he made a...