REMOVE

1. Physical
2. Geologic Atlas
3. World
4. Alaska
5. Greenland
6. Washington

WHAT

1. Atlas Map (1)
2. Geology (1)

WHERE

1. Switzerland (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)