REMOVE

1. Geology
2. Book Map
3. Wisconsin
4. Iowa

WHAT

1. Geography Book (1)
2. Geologic Atlas (1)
3. Roads (1)

WHERE

1. Lake Superior (1)
2. Minnesota (1)
3. Mississippi River Region (1)

WHO

1. Ackerman Lith. (1)
2. Butler, J.M. (1)
3. Dougal, W.H. (1)
4. Evans, John (1)
5. Hubbard (1)
6. Lippincott, Grambo & Co. (1)
7. McGoffin, J. (1)
8. Norwood, J.G. (1)
9. Owen, David Dale (1)
10. Owen, Richard (1)
11. Raymo, Chet (1)
12. Shumard, B.F. (1)
13. Smith, J. Chappell (1)
14. Smith, W. (1)
15. Whittlesey, Charles (1)

WHEN

1. 1851 (1)
2. 1852 (1)
3. 1982 (1)