It would be impossible to write the story of the Park’s administration without a review of all the _Annual Reports of the Acting Superintendents, and Superintendents of Yellowstone National Park_. The Park Library has a complete file from 1872 to the present time. In addition, the _Reports of the Secretary of the Interior_ and the _Reports of the Director of National Parks_, covering the same period, were essential cross references in this effort. A complete set of these reports is available at the State College of Washington. A perusal of the soldier (scout) diaries in the Park Library gave the substance for the discussion of that interesting phase. Among guide books _The Haynes Guide_ is in a class by itself. It is not only an invaluable hand book to the casual tourist, but it is an excellent encyclopedia for research. The Earl of Dunraven’s _Hunting in the Yellowstone_ affords an excellent narrative from the standpoint of measuring the progress of all phases of Park activity. _Yellowstone Nature Notes_ is the best source for those sprightly experiences that make life so interesting and pleasant in the Park. BIBLIOGRAPHY MANUSCRIPT MATERIAL Anderson, E. C. Diary 1909. Park Library, Mammoth, Wyoming. Anderson, Henry. Diary 1910, 1911. Park Library. Brown, Jesse R. Diary 1909, 1910. Park Library. Burgess, Felix. Diary 1898, 1899. Park Library. Cook, C. W. “Remarks of C. W. Cook, Last Survivor of the Original Explorers of the Yellowstone Park Region.” Park Library. Dorrity, Mrs. James. “Story of the Battle of Bear’s Paw.” M. D. Beal Collection, Idaho State College, Pocatello, Idaho. Fitzgerald, S. M. Diary 1907. Park Library, Mammoth, Wyoming. Graham, S. D. Diary 1906, 1907, 1908. Park Library. Harlan, W. B. “The Fiasco at Fort Fizzle—1936.” M. D. Beal Collection. Holmes, W. H. Extracts from the Diary 1872, 1878. Park Library, Mammoth, Wyoming. Langford, Nathaniel P. Diary, Second Trip to Yellowstone 1872. Park Library. Little, Raymond G. Diary 1911, 1912. Park Library. Louck, D. J. Journal in Manuscript. State Historian’s Office, Laramie, Wyoming. Martin, Louis. Diary 1900, 1901. Park Library, Mammoth, Wyoming. Mason, John E. Diary 1909. Park Library. Matlock, Jesse M. “Dictation.” M. D. Beal Collection. Morrison, James. Diary 1897, 1898, 1899. Park Library, Mammoth, Wyoming. McBride, James. Diary 1908, 1909, 1910, 1911, 1912. Park Library. Peale, A. C. Diary of Field Operations, U. S. Geological Survey 1872. (Three volumes.) Park Library. Phillips, Ulrich B. “Lectures on Early America.” (Notes taken by the author at the University of California in 1933.) Rubin, Walter. Diary 1911. Park Library, Mammoth, Wyoming. Shambow, Louie. “Story of the Battle of Bear’s Paw.” M. D. Beal Collection. Titus, N. C. “Story of Colonel Miles’ Attack on the Nez Percé Camp.” M. D. Beal Collection.