REMOVE

1. Physical
2. Geologic Atlas
3. Atlas Map
4. Alaska

WHAT

1. Geology (1)

WHERE

1. Greenland (1)
2. Switzerland (1)
3. Washington (1)
4. World (1)

WHO

1. Berghaus, Hermann (1)
2. Hess, O. (1)
3. Justus Perthes (1)
4. Kogel, F. (1)
5. Risch, M. (1)

WHEN

1. 1892 (1)