To Charles Lyell [3 November 1869]
Summary
Takes "much to heart" solar evidence for short age of the earth. Cites evidence for "long endurance of our existing continents". Comments on process of denudation.
| Author: | Charles Robert Darwin |
| Addressee: | Charles Lyell, 1st baronet |
| Date: | [3 Nov 1869] |
| Classmark: | American Philosophical Society (Mss.B.D25.346) |
| Letter no: | DCP-LETT-5974 |
To Charles Lyell 1 [November 1869]
Summary
Has just arrived in London, and would like to visit the following morning at breakfast time.
| Author: | Charles Robert Darwin |
| Addressee: | Charles Lyell, 1st baronet |
| Date: | 1 [Nov 1869] |
| Classmark: | The University of Edinburgh Centre for Research Collections (Lyell Collection) |
| Letter no: | DCP-LETT-6965F |
From Charles Lyell 2 November 1869
Summary
Comments on Huxley’s address ["Geological reform", Q. J. Geol. Soc. Lond. 25 (1869): xxxviii–liii].
Physicists have ignored variation in sea-level in calculating effects.
Doubts if sun only source of heat.
Notes average depth of sea is 15 times height of land.
Criticises CD’s concept of permanent continents.
Sedimentary strata of Alleghenies must have derived from continent located where Atlantic is. Thinks enormous amount of denudation, submergence, and elevation may have accompanied relatively insignificant organic changes.
| Author: | Charles Lyell, 1st baronet |
| Addressee: | Charles Robert Darwin |
| Date: | 2 Nov 1869 |
| Classmark: | The University of Edinburgh Centre for Research Collections (Gen.113.ff.3734–3737) |
| Letter no: | DCP-LETT-6967 |
| letter | (3) |
| Darwin, C. R. | (2) |
| Lyell, Charles | (1) |
| Lyell, Charles | (2) |
| Darwin, C. R. | (1) |
