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To Ernst Haeckel 3 August [1869]
Summary
Suggests Englishmen who might provide sponge specimens.
| Author: | Charles Robert Darwin |
| Addressee: | Ernst Philipp August (Ernst) Haeckel |
| Date: | 3 Aug [1869] |
| Classmark: | Ernst-Haeckel-Haus (Bestand A-Abt. 1: 1–52/22) |
| Letter no: | DCP-LETT-6850 |
To Ernst Haeckel 3 October [1869]
Summary
Mentions views of Sars on species.
EH’s work on Siphonophora.
| Author: | Charles Robert Darwin |
| Addressee: | Ernst Philipp August (Ernst) Haeckel |
| Date: | 3 Oct [1869] |
| Classmark: | Ernst-Haeckel-Haus (Bestand A-Abt. 1: 1–52/23) |
| Letter no: | DCP-LETT-6924 |
