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Darwin Correspondence Project

Search: contains "Darwin, C. R", author is "Haeckel, Ernst", date is "1872"

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From Ernst Haeckel   12 October 1872

Summary

Much experiment and observation needed before spontaneous generation will be empirically advanced, but philosophically the matter is clear.

Thinks Ludwig Rütimeyer has attacked EH to satisfy pious opinion in Basel.

Will soon be finished with his monograph Die Kalkschwämme [1872].

Author:  Ernst Philipp August (Ernst) Haeckel
Addressee:  Charles Robert Darwin
Date:  12 Oct 1872
Classmark:  DAR 166: 58
Letter no:  DCP-LETT-8556

Matches: 1 hit

From Ernst Haeckel   1 March 1872

Summary

Thanks CD for Origin, 6th ed.

Has declined chair at Strasbourg.

Describes research on calcareous sponges.

Criticises Pangenesis.

Author:  Ernst Philipp August (Ernst) Haeckel
Addressee:  Charles Robert Darwin
Date:  1 Mar 1872
Classmark:  DAR 166: 57
Letter no:  DCP-LETT-8232

Matches: 1 hit

From Ernst Haeckel   10 December 1872

Summary

Thanks CD for Expression.

Describes work on Die Kalkschwämme and its principal conclusions.

The application of biogenetic law.

Notes variability among calcareous sponges.

Gastrula-like "Gastraea" as ancestor of multicellular animals.

Posits homology between Hydra, Olynthus of calcareous sponges, and initial germ layers of higher animals.

Comments on Lubbock’s Prehistoric times [1865]

and on David Strauss’s Der alte und der neue Glaube [1872].

Author:  Ernst Philipp August (Ernst) Haeckel
Addressee:  Charles Robert Darwin
Date:  10 Dec 1872
Classmark:  DAR 166: 34, 59
Letter no:  DCP-LETT-8669

Matches: 1 hit

Document type
letter (3)
Author
Haeckel, Ernst[X]
Addressee
Correspondent
Date
1872
03 (1)
10 (1)
12 (1)