To Ernst Haeckel 30 December [1863] – 3 January [1864]
Summary
Will be proud to receive EH’s Die Radiolarien [1862].
Health continues very weak.
[P.S. 3 Jan] Has sent EH another letter by mistake.
Author: | Charles Robert Darwin |
Addressee: | Ernst Philipp August (Ernst) Haeckel |
Date: | 30 Dec [1863] – 3 Jan [1864] |
Classmark: | Ernst-Haeckel-Haus (Bestand A-Abt. 1: 1026/1) |
Letter no: | DCP-LETT-4361 |
To Ernst Haeckel 3 March [1864]
Summary
Has received EH’s Die Radiolarien. Drawings admirably executed. Had no idea such low animals could develop such beautiful structures.
Author: | Charles Robert Darwin |
Addressee: | Ernst Philipp August (Ernst) Haeckel |
Date: | 3 Mar [1864] |
Classmark: | Ernst-Haeckel-Haus (Bestand A–Abt. 1: 1–52/2) |
Letter no: | DCP-LETT-4419 |
To Ernst Haeckel 9 March 1864
Summary
Thanks for paper ["Über die Entwicklungstheorie Darwins", Amtl. Ber. Versamml. Dtsch. Naturforsch. Aerzte 38 (1863): 17–30]. Delighted EH confirms his views. Many in England afraid to express views openly.
Author: | Charles Robert Darwin |
Addressee: | Ernst Philipp August (Ernst) Haeckel |
Date: | 9 Mar 1864 |
Classmark: | Ernst-Haeckel-Haus (Bestand A–Abt. 1: 1–52/3) |
Letter no: | DCP-LETT-4422 |
To Ernst Haeckel 19 July [1864]
Summary
Thanks for praise [of Origin].
Comments on EH’s Die Radiolarien.
Grieved EH has suffered calamity [death of Anna Sethe Haeckel].
CD recovering from long illness.
Doing easy botanical work.
Mentions variability.
Discusses reception of CD’s views in Germany.
Author: | Charles Robert Darwin |
Addressee: | Ernst Philipp August (Ernst) Haeckel |
Date: | 19 July [1864] |
Classmark: | Ernst-Haeckel-Haus (Bestand A-Abt. 1: 1-52/4) |
Letter no: | DCP-LETT-4569 |
To Ernst Haeckel [after 10] August – 8 October [1864]
Summary
Can understand EH’s feelings on death of his wife.
CD was impressed by manner in which species in South America are replaced by closely allied ones, by affinity of species inhabiting islands near S. America, and by relation of living Edentata and Rodentia to extinct species. When he read Malthus On population, the idea of natural selection flashed on him.
Agrees with EH’s remarks on Kölliker ["Darwin’sche Schöpfungstheorie", Z. Wiss. Zool. 14 (1864): 174–86].
Asks EH to thank Carl Gegenbaur [for Vergleichende Anatomie der Wirbelthiere (1864)].
Author: | Charles Robert Darwin |
Addressee: | Ernst Philipp August (Ernst) Haeckel |
Date: | [after 10] Aug – 8 Oct [1864] |
Classmark: | Ernst-Haeckel-Haus (Bestand A–Abt. 1: 1–52/5) |
Letter no: | DCP-LETT-4631 |
To Ernst Haeckel 21 November [1864]
Summary
Sends Living Cirripedia [vol. 2].
Has employed translator for Fritz Müller’s book [Für Darwin (1864)].
Thanks for paper and speech.
Author: | Charles Robert Darwin |
Addressee: | Ernst Philipp August (Ernst) Haeckel |
Date: | 21 Nov [1864] |
Classmark: | Ernst-Haeckel-Haus (Bestand A–Abt. 1: 1–52/6) |
Letter no: | DCP-LETT-4676 |
To Ernst Haeckel 6 December [1865]
Summary
Not surprised at delay of his book [Generelle Morphologie (1866)].
P. M. Duncan taking side of evolution.
Has received paper on Geryonidae ["Über eine neue Form des Generationswechsels bei den Medusen", Monatsber. K. Akad. Wiss. Berlin (1865): 85–94]. Had often speculated on whether such a case ever occurred in nature.
Author: | Charles Robert Darwin |
Addressee: | Ernst Philipp August (Ernst) Haeckel |
Date: | 6 Dec [1865] |
Classmark: | Ernst-Haeckel-Haus (Bestand A–Abt. 1: 1–52/7) |
Letter no: | DCP-LETT-4947 |
To Ernst Haeckel 20 January [1866]
Summary
Sends copies of photographs of himself. Asks for photographs of German naturalists.
Comments on EH’s account of Protogenes primordialis.
Author: | Charles Robert Darwin |
Addressee: | Ernst Philipp August (Ernst) Haeckel |
Date: | 20 Jan [1866] |
Classmark: | Ernst-Haeckel-Haus (Bestand A-Abt. 1-52/8) |
Letter no: | DCP-LETT-4980 |
To Ernst Haeckel 1 February 1866
Summary
Thanks for photographs [of German scientists].
Author: | Charles Robert Darwin |
Addressee: | Ernst Philipp August (Ernst) Haeckel |
Date: | 1 Feb 1866 |
Classmark: | Ernst-Haeckel-Haus (Bestand A-Abt. 1-52/9) |
Letter no: | DCP-LETT-4990 |
To Ernst Haeckel 18 August [1866]
Summary
Comments on sheet of EH’s Generelle Morphologie [1866]. In emphasising divergence of character EH shows his clear understanding of CD’s views. It was years before CD saw necessity of divergence.
Interested in Carl Claus [Copepodenfauna von Nizza (1866)].
Author: | Charles Robert Darwin |
Addressee: | Ernst Philipp August (Ernst) Haeckel |
Date: | 18 Aug [1866] |
Classmark: | Ernst-Haeckel-Haus (Bestand A-Abt. 1: 1-52/10) |
Letter no: | DCP-LETT-5193 |
To Ernst Haeckel [20 October 1866]
Summary
Explains how to get to Down for visit.
Author: | Charles Robert Darwin |
Addressee: | Ernst Philipp August (Ernst) Haeckel |
Date: | [20 Oct 1866] |
Classmark: | Ernst-Haeckel-Haus (Bestand A-Abt. 1-52/11) |
Letter no: | DCP-LETT-5224 |
To Ernst Haeckel 8 January 1867
Summary
Comments on EH’s "great work" [Generelle Morphologie].
An English translation "hopeless".
Asks about EH’s expedition.
MS of Variation sent to printers.
Fritz Müller working on plants.
Author: | Charles Robert Darwin |
Addressee: | Ernst Philipp August (Ernst) Haeckel |
Date: | 8 Jan 1867 |
Classmark: | Ernst-Haeckel-Haus (Bestand A-Abt. 1-52/12) |
Letter no: | DCP-LETT-5349 |
To Ernst Haeckel 12 April [1867]
Summary
Struck by singular clarity of EH’s Generelle Morphologie. Remarks on various authors seem too severe. Severity leads the reader to take the side of the attacked person.
Making slow progress in correcting Variation.
Author: | Charles Robert Darwin |
Addressee: | Ernst Philipp August (Ernst) Haeckel |
Date: | 12 Apr [1867] |
Classmark: | Ernst-Haeckel-Haus (Bestand A-Abt. 1–52/13) |
Letter no: | DCP-LETT-5500 |
To Ernst Haeckel 21 May [1867]
Summary
Discusses his previous criticisms of EH’s Generelle Morphologie. Fears it will make enemies.
Discusses reception of descent theory in England.
Mentions EH’s trip to Canary Islands.
Author: | Charles Robert Darwin |
Addressee: | Ernst Philipp August (Ernst) Haeckel |
Date: | 21 May [1867] |
Classmark: | Ernst-Haeckel-Haus (Bestand A-Abt. 1-52/14) |
Letter no: | DCP-LETT-5544 |
To Ernst Haeckel 4 July [1867]
Summary
Congratulates EH on approaching marriage.
Sorry he will not visit in autumn.
Glad EH is re-examining Protoamoeba but puzzled to think what he can find.
Describes newspaper account of criticism by Agassiz of Generelle Morphologie.
Author: | Charles Robert Darwin |
Addressee: | Ernst Philipp August (Ernst) Haeckel |
Date: | 4 July [1867] |
Classmark: | Ernst-Haeckel-Haus (Bestand A-Abt. 1-52/15) |
Letter no: | DCP-LETT-5578 |
To Ernst Haeckel 6 February [1868]
Summary
Delighted to hear of success of EH’s lectures.
Ernest Faivre [La variabilité des espèces (1868)] sees no reason to favour common descent of allied species.
Asks EH to pass German edition of Variation on to Gegenbaur.
Comments on work of Miklucho[-Maclay], Dohrn, and Bleek.
Has begun work on Descent.
Author: | Charles Robert Darwin |
Addressee: | Ernst Philipp August (Ernst) Haeckel |
Date: | 6 Feb [1868] |
Classmark: | Ernst-Haeckel-Haus (Bestand A-Abt. 1: 1–52/16) |
Letter no: | DCP-LETT-5841 |
To Ernst Haeckel 30 March [1868]
Summary
Now understands importance of swim-bladder in selachians. Always imagined animal like Lepidosiren was parent form of vertebrates.
Has been nearly a month in London, collecting facts on sexual selection from breeders and at Zoological Gardens.
Astonished at hybrid of rabbit and hare. Is it certain that work was done with hare?
Author: | Charles Robert Darwin |
Addressee: | Ernst Philipp August (Ernst) Haeckel |
Date: | 30 Mar [1868] |
Classmark: | Ernst-Haeckel-Haus (Bestand A-Abt. 1: 1–52/17) |
Letter no: | DCP-LETT-6070 |
To Ernst Haeckel 3 July 1868
Summary
Thanks for two small works.
Will read essay on man [Entstehung des Menschengeschlechts] with much interest.
Generelle Morphologie reviewed by G. Bentham ["Anniversary Address", Proc. Linn. Soc. Lond. (1867–8): lviii–c].
Extremely sceptical of hare–rabbit hybrid.
Author: | Charles Robert Darwin |
Addressee: | Ernst Philipp August (Ernst) Haeckel |
Date: | 3 July 1868 |
Classmark: | Ernst-Haeckel-Haus (Bestand A-Abt. 1:1–52/18) |
Letter no: | DCP-LETT-6265 |
To Ernst Haeckel 7 November 1868
Summary
Thanks for [Natürliche] Schöpfungsgeschichte [1868]. "What an indomitable worker you are."
Agrees with EH’s Entstehung des Menschengeschlechts [1868].
Author: | Charles Robert Darwin |
Addressee: | Ernst Philipp August (Ernst) Haeckel |
Date: | 7 Nov 1868 |
Classmark: | Ernst-Haeckel-Haus (Bestand A-Abt. 1: 1–52/19) |
Letter no: | DCP-LETT-6450 |
To Ernst Haeckel 19 November 1868
Summary
Congratulates EH on birth of child.
Mentions projected translation of Generelle Morphologie.
Comments on EH’s last book [Natürliche Schöpfungsgeschichte]. Criticises EH’s statements on palaeontology.
Author: | Charles Robert Darwin |
Addressee: | Ernst Philipp August (Ernst) Haeckel |
Date: | 19 Nov 1868 |
Classmark: | Ernst-Haeckel-Haus (Bestand A-Abt. 1: 1–52/20) |
Letter no: | DCP-LETT-6466 |
letter | (97) |
Darwin, C. R. | (53) |
Haeckel, Ernst | (44) |
Haeckel, Ernst | (53) |
Darwin, C. R. | (44) |