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To Charles Lyell [3 March 1866]
Summary
Has returned memorial to Chancellor of Exchequer; thanks CL for his note.
Lengthy remarks on cool period. Did not know of CL’s interest. New facts in new German and English [4th] editions of Origin will be too late for CL’s use. CD’s ten-year-old MS on cool period is available.
| Author: | Charles Robert Darwin |
| Addressee: | Charles Lyell, 1st baronet |
| Date: | [3 Mar 1866] |
| Classmark: | American Philosophical Society (Mss.B.D25.315) |
| Letter no: | DCP-LETT-5025 |
To Charles Lyell 8 March [1866]
Summary
Gives details of enclosed MS on cool period. Mentions Hooker’s opposed "axis of the earth" view. Causes of glacial period are beyond CD; "cannot believe change in land and water being more than a subsidiary agent".
| Author: | Charles Robert Darwin |
| Addressee: | Charles Lyell, 1st baronet |
| Date: | 8 Mar [1866] |
| Classmark: | American Philosophical Society (Mss.B.D25.316) |
| Letter no: | DCP-LETT-5028 |
