REMOVE

1. Atlas Map
2. Drake
3. Kilbourn
4. Volney
5. Darby
6. Cramer

WHAT

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

WHERE

1. Alaska (1)
2. Greenland (1)
3. Switzerland (1)
4. Washington (1)
5. 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)