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To Charles Lyell 1 October [1861]
Summary
The flint tools found at Bedford.
Further discussion of Jamieson’s theory of the formation of the roads of Glen Roy by a glacial lake. Comments on formation of Glen Spean terraces. Mentions glaciers in North Wales.
Agreement with John Murray to publish [Orchids].
| Author: | Charles Robert Darwin |
| Addressee: | Charles Lyell, 1st baronet |
| Date: | 1 Oct [1861] |
| Classmark: | American Philosophical Society (Mss.B.D25.266) |
| Letter no: | DCP-LETT-3272 |
To Charles Lyell 20 October [1861]
Summary
Continued discussion of Jamieson’s Glen Roy theory. Mentions river erosion of glaciers. Quotes from old letter to CL [1116].
Is working hard on orchids; fears subject is too complex for the public.
| Author: | Charles Robert Darwin |
| Addressee: | Charles Lyell, 1st baronet |
| Date: | 20 Oct [1861] |
| Classmark: | American Philosophical Society (Mss.B.D25.268) |
| Letter no: | DCP-LETT-3291 |
To Charles Lyell 23 [October 1861]
Summary
Comments especially on the "intermediate shelf" problem of Glen Roy; views of Jamieson and Milne. CD "cannot help a sneaking hope that the sea might have formed the horizontal shelves".
| Author: | Charles Robert Darwin |
| Addressee: | Charles Lyell, 1st baronet |
| Date: | 23 [Oct 1861] |
| Classmark: | American Philosophical Society (Mss.B.D25.269) |
| Letter no: | DCP-LETT-3295 |
