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To Charles Lyell 20 March [1869]
Summary
Discusses views of Wallace, H. N. Moseley, and Croll on the mechanics of glacier movement.
Comments on Wallace’s new book [The Malay Archipelago (1869)].
| Author: | Charles Robert Darwin |
| Addressee: | Charles Lyell, 1st baronet |
| Date: | 20 Mar [1869] |
| Classmark: | American Philosophical Society (Mss.B.D25.367) |
| Letter no: | DCP-LETT-6672 |
To Charles Lyell 5 March [1869]
Summary
Discusses wear and tear due to glaciation and significance of this evidence for dating the glacial period. Mentions views of James Croll and Archibald Geikie on the issue.
| Author: | Charles Robert Darwin |
| Addressee: | Charles Lyell, 1st baronet |
| Date: | 5 Mar [1869] |
| Classmark: | American Philosophical Society (Mss.B.D25.364) |
| Letter no: | DCP-LETT-6692 |
