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1876

Cordilleras.

Geologic Atlas

Cordilleras.

1876

Composite: Geological Atlas Sheets

National Atlas

(Composite map of) All Wheeler Geologica …

1876

Composite: Index to Geological Atlas She …

National Atlas

(Composite map of) Index of all Wheeler …

1873

Title Page: Geological atlas ... West of …

National Atlas

(Title Page to) Geological Atlas Project …

1873

Cover: Geographical Explorations & Surve …

National Atlas

(Cover to) Geographical Explorations And …