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Chas. D. Walcott, Photo VIEW OF THE AMPHITHEATRE ON SOUTH-WEST SIDE OF MT. STEPHEN |
Chas. D. Walcott, Photo JUVENILE GEOLOGISTS AT THE "FOSSIL BED," MT. STEPHEN |
Chas. D. Walcott, Photo VIEW OF THE AMPHITHEATRE ON SOUTH-WEST SIDE OF MT. STEPHEN |
Chas. D. Walcott, Photo JUVENILE GEOLOGISTS AT THE "FOSSIL BED," MT. STEPHEN |