To Ernst Haeckel 2 September 1872
Summary
Comments on EH’s criticism of authors in third edition of Natürliche Schöpfungsgeschichte [1872].
Discusses book by H. C. Bastian [The beginnings of life (1872)].
Author: | Charles Robert Darwin |
Addressee: | Ernst Philipp August (Ernst) Haeckel |
Date: | 2 Sept 1872 |
Classmark: | Ernst-Haeckel-Haus (Bestand A-Abt. 1:1-52/27) |
Letter no: | DCP-LETT-8506 |
To Ernst Haeckel 20 December 1872
Summary
Comments on EH’s forthcoming [Die Kalkschwämme (1872)].
Thinks EH is working much too hard.
Author: | Charles Robert Darwin |
Addressee: | Ernst Philipp August (Ernst) Haeckel |
Date: | 20 Dec 1872 |
Classmark: | Ernst-Haeckel-Haus (Bestand A-Abt. 1:1-52/28) |
Letter no: | DCP-LETT-8688 |
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 |
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 |
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 |
letter | (5) |
Haeckel, Ernst | (3) |
Darwin, C. R. | (2) |
Darwin, C. R. | (3) |
Haeckel, Ernst | (2) |