| Answer | Crossword Clue |
|---|---|
| MUIR | Famed American naturalist |
| MUIR | American naturalist. |
| BEEBE | American naturalist. |
| MUIR | American naturalist |
| AGASSIZ | American naturalist. |
| MUIR | American naturalist John |
| BEEBE | American naturalist and explorer |
| BEEBE | American Naturalist and Explorer William |
| AGASSIZ | Swiss-American naturalist (1807-73). |
| ANDREWS | American naturalist, discoverer of dinosaur eggs. |
