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Incoming Resources
- Elephant, by Caroline Arnold ; photographs by Richard Hewett
- Llama, by Caroline Arnold ; photographs by Richard Hewett
- Fox, by Caroline Arnold ; photographs by Richard Hewett
- Sea lion, by Caroline Arnold ; photographs by Richard Hewett
- The ancient cliff dwellers of Mesa Verde, by Caroline Arnold ; photographs by Richard Hewett
- Lion, by Caroline Arnold ; photographs by Richard Hewett
- City of the gods, Mexico's ancient city of Teotihuacán, by Caroline Arnold ; photographs by Richard Hewett
- Rhino, by Caroline Arnold ; photographs by Richard Hewett, with additional photographs by Arthur P. Arnold
- Snake, by Caroline Arnold ; photographs by Richard Hewett
- Flamingo, by Caroline Arnold ; photographs by Richard Hewett
- Penguin, Caroline Arnold ; photographs by Richard Hewett
- Camel, by Caroline Arnold ; photographs by Richard Hewett
- Stories in stone, rock art pictures by early Americans, by Caroline Arnold ; photographs by Richard Hewett
- Sea lion, by Caroline Arnold ; photographs by Richard Hewett
- Elephant, by Caroline Arnold ; photographs by Richard Hewett
- Llama, by Caroline Arnold ; photographs by Richard Hewett
- Fox, by Caroline Arnold ; photographs by Richard Hewett
- City of the gods, Mexico's ancient city of Teotihuacán, by Caroline Arnold ; photographs by Richard Hewett
- Penguin, Caroline Arnold ; photographs by Richard Hewett
- Rhino, by Caroline Arnold ; photographs by Richard Hewett, with additional photographs by Arthur P. Arnold
- Lion, by Caroline Arnold ; photographs by Richard Hewett
- Flamingo, by Caroline Arnold ; photographs by Richard Hewett
- Stories in stone, rock art pictures by early Americans, by Caroline Arnold ; photographs by Richard Hewett
- Camel, by Caroline Arnold ; photographs by Richard Hewett