Jackson, W. Turrentine. “The Cook-Folsom Exploration of the Upper Yellowstone 1869,” _The Pacific Northwest Quarterly_, XXXII, 1941. Jagger, T. A. “Death Gulch, A Natural Bear Trap,” _Popular Science_, LIV (February, 1899). Joseph, Chief. “Own Story,” _North American Review_ (April, 1879). Kearns, William E. “A Nez Percé Chief Revisits Yellowstone,” _Yellowstone Nature Notes_, XII (July-August, 1935). Knowlton, F. H. “The Tertiary Flowers of the Yellowstone National Park,” _American Journal of Science_, No. 7 (July, 1896). Knowlton, F. H. “The Standing Fossil Forests of the Yellowstone National Park,” _Plant World_, I (January, 1898). Koch, P. “Discovery of the Yellowstone National Park,” _Magazine of American History_, II (June, 1884). Langford, Nathaniel P. “The Ascent of Mount Hayden,” _Scribner’s Monthly_, III (June, 1873). Lewis, Henry H. “Managing a National Park,” _The Outlook_, LXXIV (August, 1903). Lewis, Lucien M. “To the Old Stage Driver,” _Overland Monthly_, LXIX (July, 1917). Linton, Edwin. “Overland Sounds in the Vicinity of Yellowstone Lake,” _Science_, No. 561 (Nov. 3, 1893). Muir, John. “The Yellowstone National Park,” _The Atlantic Monthly_, LXXXI (January, 1898; April, 1898). Phillips, Paul C., editor. “The Battle of the Big Hole,” _Sources of Northwest History_, No. 8, University of Montana, Missoula. Rollins, Alice W. “The Three Tetons,” _Harper’s_, LXXIV (May, 1887). Russell, Carl P. “Rendezvous Period of American Fur Trade,” _Oregon Historical Quarterly_, XLII (March, 1941). Russell, Carl P. “Scientists and Scientific Investigations in Yellowstone National Park,” Department of the Interior, 1933. Sedgwick, Henry D. “On Horse Back Through Yellowstone,” _World’s Work_, VI (June, 1903). Smith, George O. “The Nation’s Playgrounds,” _Review of Reviews_, XL (July, 1909). Staffer, Alvin P. and Porter, Charles W. “The National Park Service Program of Conservation for Areas and Structures of National Historical Significance,” _The Mississippi Valley Historical Review_, XXX, 1 (June, 1943). Warner, Charles D. “The Yellowstone National Park,” _Harper’s_, XCIV (January, 1897). GOVERNMENT REPORTS AND PUBLICATIONS Barlow, J. W. and Heap, D. P. _Report of Barlow and Heap 1871_. Washington, D.C.: Government Printing Office, 1872. _Congressional Globe._ 42 Congress, 2nd Session, 1871-72. Part I, Washington, D.C.: Government Printing Office, 1872. _Congressional Record._ 43 Congress, Session I, Washington, D.C.: Government Printing Office, 1874. _Laws and Regulations_ relating to the Yellowstone National Park, Wyoming, by the Secretary of the Interior. Washington, D.C.: Government Printing Office, 1908. Ludlow, William. _Report to the War Department 1875._ Washington, D.C., 1876.