| Introduction | |
| 1 | Palaeontology | 
| Expeditions | |
| 2 | Bone Field on Talbot Hill, 10 miles from Canon City, Colo. | 
| Photographers | |
| 3 | Exhibitions: 1855 Crystal Palace - Models of Extinct Animals | 
| 4 | James Deane: Ichnographs from the sandstone of Connecticut River (1861) | 
| Introduction | |
| 1 | Palaeontology | 
| Expeditions | |
| 2 | Bone Field on Talbot Hill, 10 miles from Canon City, Colo. | 
| Photographers | |
| 3 | Exhibitions: 1855 Crystal Palace - Models of Extinct Animals | 
| 4 | James Deane: Ichnographs from the sandstone of Connecticut River (1861) |