REMOVE

1. Atlas Map
2. World
3. Switzerland
4. Justus Perthes

WHAT

1. Geologic Atlas (1)
2. Geology (1)
3. Physical (1)

WHERE

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

WHO

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

WHEN

1. 1892 (1)