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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

From Ernst Haeckel   2 July 1869

Summary

Comments on 5th edition of the Origin [1869];

preparation of second edition of Natürliche Schöpfungsgeschichte [1870].

The reception of CD’s theory. Mentions support of Pieter Harting and Michael Sars.

EH’s research on calcareous sponges and plans to publish monograph on them.

Author:  Ernst Philipp August (Ernst) Haeckel
Addressee:  Charles Robert Darwin
Date:  2 July 1869
Classmark:  DAR 166: 52
Letter no:  DCP-LETT-6812

From Ernst Haeckel   29 September 1869

Summary

Thanks CD for assistance concerning sponge specimens. Mentions Englishmen who have sent specimens. J. S. Bowerbank has not answered requests.

Sends articles dealing with sponges and Medusae. Cites passages for CD to read. Suggests passages from Entwicklungsgeschichte der Siphonophoren [1869].

Describes meeting with Sars and his trip to Norway.

Author:  Ernst Philipp August (Ernst) Haeckel
Addressee:  Charles Robert Darwin
Date:  29 Sept 1869
Classmark:  DAR 166: 53
Letter no:  DCP-LETT-6917
Document type
letter (4)
Addressee
Correspondent
Darwin, C. R.[X]
Haeckel, Ernst[X]
Date
1869
07 (1)
08 (1)
09 (1)
10 (1)
letter