REMOVE

1. Alaska
2. World
3. Risch, M.
4. 1892

WHAT

1. Atlas Map (1)
2. Geologic Atlas (1)
3. Geology (1)
4. 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)