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From Henry Doubleday 3 May 1860
Summary
Has read Origin with pleasure.
Has performed many experiments which confirm his opinion that primrose, oxlip, and cowslip are three distinct species.
| Author: | Henry Doubleday |
| Addressee: | Charles Robert Darwin |
| Date: | 3 May 1860 |
| Classmark: | DAR 162.2: 237 |
| Letter no: | DCP-LETT-2781 |
From Henry Doubleday 16 May 1860
Summary
Answers CD’s questions about his experiments with primroses, cowslips, and oxlips. HD is aware experiments must often be repeated many times. Has never met with the oxlip except where primrose and cowslip grow together.
| Author: | Henry Doubleday |
| Addressee: | Charles Robert Darwin |
| Date: | 16 May 1860 |
| Classmark: | DAR 162.2: 238 |
| Letter no: | DCP-LETT-2804 |
