8. Annual Reports of Superintendents of the Park. Including, to the present time, reports by N. P. Langford, P. W. Norris, P. H. Conger, D. W. Wear, Captain (now Major, retired) Moses Harris, Captain F. A. Boutelle, and Captain George S. Anderson. Washington: Government Printing Office.

9. Annual Report (Fifth: 1871) of the U. S. Geological Survey of the Territories. By Dr. F. V. Hayden, with sub-reports by A. C. Peale, Joseph Leidy and T. C. Porter, Washington: Government Printing Office. 1872.

10. Annual Report (Sixth: 1872) of the U. S. Geological Survey of the Territories. By Dr. F. V. Hayden, with sub-reports by Dr. A. C. Peale, F. H. Bradley, C. H. Merriam, Henry Gannett, J. M. Coulter and N. P. Langford. Washington: Government Printing Office. 1873.

11. Annual Report (Twelfth: 1878) of the U. S. Geological and Geographical Survey of the Territories. By Dr. F. V. Hayden, with sub-reports by W. H. Holmes, Dr. A. C. Peale and Henry Gannett. Washington: Government Printing Office. 1883. This report contains Dr. Peale’s exhaustive treatise upon the thermal phenomena of the park; his general treatise on the hot springs and geysers of the world, and his elaborate bibliography pertaining to these subjects.

12. Annual Reports of the United States Geological Survey. The serial numbers of these reports begin with June 30, 1880, the first report being for the year ending at that time. Nearly all these reports contain valuable references to the Park, most of them being from the pen of Prof. Arnold Hague. One article of great importance, by Walter Harvey Weed (Ninth Annual Report, 1888, pp. 613-676), on the formation of hot springs deposits through the agency of vegetable growth, deserves particular notice. Washington: Government Printing Office.

13. Aquatic Invertebrate Fauna of the Y. N. P., Preliminary Report upon. S. A. Forbes. Bulletin United States Fish Commission for 1891, p. 215. Washington: Government Printing Office. 1893.

Arthur, Chester A., [66].

14. Ascent of Mt. Hayden. N. P. Langford. Scribner’s (Old) Monthly, vol. vi, p. 129.

15. Astoria.—Washington Irving.—Chapter xv contains a reference to John Colter.

Attractions of the Y. N. P., [96].