1. Contributions to geology Author/Creator: Lea, Isaac, 1792-1886 Publication/Creation: Philadelphia : Carey, Lea and Blanchard, 1833 Resource Type: Book Access & Availability: Loading
2. Contributions to the Tertiary geology and paleontology of the United States Author/Creator: Heilprin, Angelo, 1853-1907 Publication/Creation: Philadelphia : The author, 1884 Resource Type: Book Access & Availability: Loading
3. Correlation papers : Eocene Author/Creator: Clark, William Bullock, 1860-1917, author Publication/Creation: Washington, D.C. : Department of the Interior, United States Geological Survey, 1891 Resource Type: Book Access & Availability: Loading
4. Correlation papers ; Eocene Author/Creator: Clark, William Bullock, 1860-1917 Publication/Creation: Washington : Govt. Print. Off, 1891 Resource Type: Book Is Part Of: U.S. Geological Survey bulletin, no. 81-83. Access & Availability: Loading
5. Correlation papers : Neocene Author/Creator: Dall, William Healey, 1845-1927, author Publication/Creation: Washington, D.C. : Department of the Interior, United States Geological Survey, 1892 Resource Type: Book Access & Availability: Loading
6. Correlation papers : Neocene Publication/Creation: Washington, D.C. : G.P.O., 1892 Resource Type: Book Is Part Of: U.S. Geological Survey bulletin, no. 84-86. Access & Availability: Loading