REMOVE

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

WHAT

1. Geology (1)
2. Physical (1)

WHERE

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