Ferdinand V. Hayden
Public Domain
Werke:
- Preliminary report of the United States Geological Survey of Montana and portions of adjacent territories : being a fifth annual report of progress
- Report of the United States Geological Survey of the Territories. 9. 1876
- Illustrations of Cretaceous and Tertiary Plants of the Western Territories of the United States
- Annual report of progress of the exploration for the year 1875 embracing Colorado, parts of adjacent territories