To J. D. Hooker 3 May [1859]
Summary
CD favours occurrence of reversions, although lack of experiments forces one to vague opinions. Reversions oppose only the inheritance not the occurrence of variation. Discusses relation of reversion, direct influence of conditions, and selection.
| Author: | Charles Robert Darwin |
| Addressee: | Joseph Dalton Hooker |
| Date: | 3 May [1859] |
| Classmark: | DAR 115: 13 |
| Letter no: | DCP-LETT-2457 |
