1. Memorial of Daniel Ruggles, asking an appropriation, to be expended in developing his system of producing rainfall Author(s): Ruggles, Daniel, 1810-1897, author Publication: [Washington, D.C.?] : [publisher not identified], [1880?] Subject(s): RainHydrology
2. The hydrology of the Mississippi Author(s): Greenleaf, James L. (James Leal) author Publication: [New Haven?] : [publisher not identified], [1896?] Subject(s): HydrologyRiversMidwestern United States
