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From Ernst Haeckel   20 December 1874

Summary

Discusses his Anthropogenie [1874]. Remarks on the tables.

Has CD received Friedrich von Hellwald’s Culturgeschichte [1875]?

Plans research trip to the Mediterranean.

Author:  Ernst Philipp August (Ernst) Haeckel
Addressee:  Charles Robert Darwin
Date:  20 Dec 1874
Classmark:  DAR 166: 63
Letter no:  DCP-LETT-9767

Matches: 1 hit

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

Matches: 1 hit

From Ernst Haeckel   31 January and 1 February 1876

Summary

Thanks CD for comments on Arabische Korallen [1876].

Comments on Monoenia darwinii [?] as a primitive sponge.

Discusses criticisms of CD’s theory by K. E. von Baer ["Über Darwin’s Lehre", in Reden 2 (1876): 235–480].

Author:  Ernst Philipp August (Ernst) Haeckel
Addressee:  Charles Robert Darwin
Date:  31 Jan and 1 Feb 1876
Classmark:  DAR 166: 67
Letter no:  DCP-LETT-10375

Matches: 1 hit

From Ernst Haeckel   28 January 1866

Summary

Discusses exchange of photographs with German scientists.

Comments on attitudes of German scientists toward CD’s theory.

Names several scientists who exchanged photographs: Braun, Virchow, Leydig, and Dohrn.

Author:  Ernst Philipp August (Ernst) Haeckel
Addressee:  Charles Robert Darwin
Date:  28 Jan 1866
Classmark:  DAR 166: 42
Letter no:  DCP-LETT-4985

Matches: 1 hit

From Ernst Haeckel   28 June 1867

Summary

Is engaged to marry Agnes Huschke. Will make wedding trip to Switzerland and Italy in autumn; therefore cannot visit CD as hoped.

Discusses present research. Comments on Protoamoeba with respect to origin of life. Says it makes question of common or separate origin of phyla unimportant.

CD to receive honorary diploma from Imperial Zoological Botanical Society in Vienna.

Sends photograph of Viennese botanist, August Kanitz.

Author:  Ernst Philipp August (Ernst) Haeckel
Addressee:  Charles Robert Darwin
Date:  28 June 1867
Classmark:  DAR 166: 45
Letter no:  DCP-LETT-5576

Matches: 1 hit

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   9 November 1868

Summary

Thanks CD for comments [on Entstehung des Menschengeschlechts].

Comments on Goethe and Kant as early evolutionists.

Describes birth of his son. Mentions child’s "atavisms".

Author:  Ernst Philipp August (Ernst) Haeckel
Addressee:  Charles Robert Darwin
Date:  9 Nov 1868
Classmark:  DAR 166: 50
Letter no:  DCP-LETT-6452

Matches: 1 hit

From Ernst Haeckel   21 December 1871

Summary

Comments on Die Kalkschwämme [1872].

A Franciscan prior, Padre Buona-Grazia, agrees with human descent.

His trip to Dalmatia.

German reception of Descent.

Mentions current work.

Author:  Ernst Philipp August (Ernst) Haeckel
Addressee:  Charles Robert Darwin
Date:  21 Dec 1871
Classmark:  DAR 166: 56
Letter no:  DCP-LETT-8114

Matches: 1 hit

From Ernst Haeckel   7 November 1875

Summary

Thanks CD for Climbing plants and Insectivorous plants.

Discusses his research on phylogeny. Results described in "Die Gastrula und die Eifurchung der Tiere" [Jena. Z. Naturw. 9 (1875): 402–508].

Describes newly discovered coral.

Author:  Ernst Philipp August (Ernst) Haeckel
Addressee:  Charles Robert Darwin
Date:  7 Nov 1875
Classmark:  DAR 166: 65
Letter no:  DCP-LETT-10246

Matches: 1 hit

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

Matches: 1 hit

From Ernst Haeckel   8 October 1873

Summary

On CD’s paper ["Complemental males of certain cirripedes", Collected papers 2: 177–82].

Comments on paper by W. H. Dallinger and J. J. Drysdale ["Life history of a Cercomonad", Mon. Microsc. J. 10 (1873): 53–8].

Discusses origin of life, the Gastraea theory and concept that primary germ layers are homologous in all animals. Notes similar views of E. Ray Lankester ["On the primitive cell-layers of the embryo", Ann. & Mag. Nat. Hist. 4th ser. 11 (1873): 321–38].

Reception of Darwinism in Germany.

Author:  Ernst Philipp August (Ernst) Haeckel
Addressee:  Charles Robert Darwin
Date:  8 Oct 1873
Classmark:  DAR 166: 61
Letter no:  DCP-LETT-9091

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   23 March 1868

Summary

Has received English edition of Variation. First volume of German edition came three months ago. Comments on book.

Will send copy of recent lectures on human evolution [Entstehung des Menschengeschlechts (1868)]. Gegenbaur much interested in the subject.

Considers Selachius the ancestral form of the fish and hence of all higher vertebrates. Believes their swim-bladder became lung of amphibians.

Mentions cases of hybrid crosses between rabbits and hares producing fertile offspring.

Author:  Ernst Philipp August (Ernst) Haeckel
Addressee:  Charles Robert Darwin
Date:  23 Mar 1868
Classmark:  DAR 166: 47
Letter no:  DCP-LETT-6040

Matches: 1 hit

From Ernst Haeckel   22 June 1868

Summary

Thanks CD for article by G. H. Lewes ["Mr Darwin’s hypotheses, pt 1", Fortn. Rev. n.s. 3 (1868): 353–73]. Comments on article.

Describes hybridisation experiment carried out on rabbits and hares by Dr Conrad.

Encloses description of Monera

and a phylogenetic table of vertebrates.

Mentions work on Medusae.

The controversy over CD in Germany.

Author:  Ernst Philipp August (Ernst) Haeckel
Addressee:  Charles Robert Darwin
Date:  22 June 1868
Classmark:  DAR 166: 48
Letter no:  DCP-LETT-6255

Matches: 1 hit

From Ernst Haeckel   9 May 1876

Summary

Sends Die Perigenesis der Plastidule [1876]. Comments on CD’s theory of Pangenesis. Explains his own theory of Perigenesis.

Returns Webb and Berthelot, Îles Canaries; Géographie botanique [1840].

Describes work on 3d ed. of Anthropogenie.

Author:  Ernst Philipp August (Ernst) Haeckel
Addressee:  Charles Robert Darwin
Date:  9 May 1876
Classmark:  DAR 166: 68
Letter no:  DCP-LETT-10501

Matches: 1 hit

From Ernst Haeckel   11 November 1865

Summary

Has heard from Huxley that CD has been ill.

Progress on his book [Generelle Morphologie (1866)] has been slow.

Has been named "ordentlicher Professor". Has 150 listeners in his lectures on CD’s theory.

Thanks CD for copy [of "Climbing plants"].

Sends his book [Beiträge zur Naturgeschichte der Hydromedusen, 1. Heft: Die Familie der Rüsselquallen (Geryonidae) (1865)] and two articles.

Calls attention to a new rhizopod from Nice.

Author:  Ernst Philipp August (Ernst) Haeckel
Addressee:  Charles Robert Darwin
Date:  11 Nov 1865
Classmark:  DAR 166: 40
Letter no:  DCP-LETT-4934

Matches: 1 hit

From Ernst Haeckel   24 February 1871

Summary

Received copy of Descent.

Discusses CD’s comments on EH’s work.

Speculates about reception by press and scientists.

Remarks on sexual selection;

on human relationship to catarrhine apes.

Has rejected offer of chair at Vienna.

Compares Jena to Down.

Describes growth of his salary.

Mentions birth of Emma Haeckel.

A. M. Norman’s collection of calcareous sponges is very valuable.

Author:  Ernst Philipp August (Ernst) Haeckel
Addressee:  Charles Robert Darwin
Date:  24 Feb 1871
Classmark:  DAR 166: 55
Letter no:  DCP-LETT-7510

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

From Ernst Haeckel   [before 6 February 1868]

Summary

Describes his lectures on CD’s theory.

Thanks CD for copy of Variation. Comments on book.

Describes work of two protégés in Jena: Nicolas von Miklucho[-Maclay] and Anton Dohrn.

His cousin, Wilhelm Bleek, is sending an article about the origin of language.

Asks to keep book a few months longer but will return it if CD needs it [Webb and Berthelot, Histoire naturelle des Îles Canaries, vol. 3, pt 1: Géographie botanique (1840)].

Describes research on Siphonophora.

Describes life in Jena. Mentions alpine accident during wedding trip.

Author:  Ernst Philipp August (Ernst) Haeckel
Addressee:  Charles Robert Darwin
Date:  [before 6 Feb 1868]
Classmark:  DAR 166: 46
Letter no:  DCP-LETT-5840

Matches: 1 hit

From Ernst Haeckel   10 August 1864

Summary

Sends photographs of himself and his late wife [Anna Sethe]. Describes death of his wife.

Plans trip to the Alps.

Thanks CD for biographical information about himself.

Mentions Goethe as early evolutionist.

Cites Kant as early supporter of epigenesis.

Mentions criticism of CD’s theory by R. A. von Kölliker ["Über die Darwin’sche Schöpfungstheorie", Z. Wiss. Zool. 14 (1864): 174–86].

Author:  Ernst Philipp August (Ernst) Haeckel
Addressee:  Charles Robert Darwin
Date:  10 Aug 1864
Classmark:  DAR 166: 38
Letter no:  DCP-LETT-4586

Matches: 1 hit

Document type
letter (44)
Author
Haeckel, Ernst[X]
Addressee
Correspondent
Date
1864 (4)
1865 (1)
1866 (3)
1867 (2)
1868 (6)
1869 (2)
1870 (1)
1871 (2)
1872 (3)
1873 (2)
1874 (2)
1875 (2)
1876 (4)
1877 (1)
1878 (1)
1879 (4)
1880 (1)
1881 (3)
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