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To J. D. Hooker 28 March 1849
Summary
CD’s health and his father’s death have delayed his answer. Describes J. M. Gully’s water-cure.
JDH’s Galapagos papers [Trans. Linn. Soc. Lond. 20 (1851): 163–233] have excellent discussion of geographical distribution, but why no general treatment of affinities?
CD’s views on clay-slate laminae.
Turmoil in Royal Society between naturalists and physicists.
| Author: | Charles Robert Darwin |
| Addressee: | Joseph Dalton Hooker |
| Date: | 28 Mar 1849 |
| Classmark: | DAR 114: 113 |
| Letter no: | DCP-LETT-1236 |
To J. D. Hooker 12 October 1849
Summary
CD thinks great dam across Yangma valley is a lateral glacial moraine.
Reports on Birmingham BAAS meeting.
Details of water-cure.
Barnacles becoming tedious; careful description shows slight differences constitute varieties, not species.
Lamination of gneiss.
| Author: | Charles Robert Darwin |
| Addressee: | Joseph Dalton Hooker |
| Date: | 12 Oct 1849 |
| Classmark: | DAR 114: 116 |
| Letter no: | DCP-LETT-1260 |
