Across
- 2. - What he sought.
- 4. - Continent he explored.
- 7. - His birthplace (a part of GERMANY!)
- 9. - His field of study.
- 11. - His book title.
- 12. - His title.
Down
- 1. - One of his scientific roles (plants).
- 3. - Feature he climbed.
- 5. - River he explored.
- 6. - Phenomenon he investigated.
- 8. - His scientific focus (rocks).
- 10. - Mountain range he studied.