To Daniel Sharpe [1 November 1846]
Summary
Discusses foliation and cleavage. Comments on dip of cleavage laminae in mountains. Mentions views of Sedgwick and Studer. Suggests reading C. L. von Buch [Travels through Norway and Lapland (1813)] "as an amusement". Praises views of William Hopkins. Suggests reading paper by H. D. Rogers ["On cleavage of slate-strata", Edinburgh New Philos. J. 41 (1846): 422–3)]. Comments on the paper.
| Author: | Charles Robert Darwin |
| Addressee: | Daniel Sharpe |
| Date: | [1 Nov 1846] |
| Classmark: | The British Library (Add MS 37725: ff. 4–5) |
| Letter no: | DCP-LETT-1016 |
To J. D. Hooker [10 February 1846]
Summary
Thinks JDH’s explanation of polymorphism on volcanic islands is probably correct.
Proposes experimental test to see whether alpine form of a plant is inherited like a true variety.
| Author: | Charles Robert Darwin |
| Addressee: | Joseph Dalton Hooker |
| Date: | [10 Feb 1846] |
| Classmark: | DAR 114: 54 |
| Letter no: | DCP-LETT-951 |
Document type
| letter | (2) |
Author
| Darwin, C. R. | (2) |
Addressee
| Hooker, J. D. | (1) |
| Sharpe, Daniel | (1) |
Correspondent
| Darwin, C. R. | (2) |
| Hooker, J. D. | (1) |
| Sharpe, Daniel | (1) |
