1. List of plants found on the plains of western Dakota and eastern Montana during the summer of 1877 and spring of 1879 Author(s): Havard, Valery, 1846-1927 author Publication: Washington : Government Printing Office, 1880 Subject(s): Plants -- classificationNorth DakotaMontana
2. Notes on the deposition of scorodite from arsenical waters in the Yellowstone National Park Author(s): Hague, A. (Arnold), 1840-1917, author Publication: [New Haven?] : [publisher not identified], [1887?] Subject(s): MineralsArsenicalsHot SpringsIdahoMontanaWyoming