To Christian Gottfried Ehrenberg 22 July [1866?]
Summary
Thanks CGE for two papers and for his assistance of many years ago.
Author: | Charles Robert Darwin |
Addressee: | Christian Gottfried Ehrenberg |
Date: | 22 July [1866?] |
Classmark: | Archiv der Berlin-Brandenburgischen Akademie der Wissenschaften (Nachlass Ehrenberg, Nr. 321) |
Letter no: | DCP-LETT-5163 |
To Christian Gottfried Ehrenberg 18 November [1869]
Summary
Thanks CGE for memoir on the Bacillariae of Mexico [Abh. K. Akad. Wiss. Berlin (Phys.) (1869): 1–66].
Author: | Charles Robert Darwin |
Addressee: | Christian Gottfried Ehrenberg |
Date: | 18 Nov [1869] |
Classmark: | Archiv der Berlin-Brandenburgischen Akademie der Wissenschaften (Nachlass Ehrenberg, Nr. 321, Brief von Charles Darwin) |
Letter no: | DCP-LETT-6996 |
To Christian Gottfried Ehrenberg 20 April [1844]
Summary
Sends samples likely to contain Infusoria and some that Hooker collected in Antarctic regions.
Author: | Charles Robert Darwin |
Addressee: | Christian Gottfried Ehrenberg |
Date: | 20 Apr [1844] |
Classmark: | Museum für Naturkunde Berlin (MfN/HBSB, N005 NL Christian Gottfried Ehrenberg Nr. 43) |
Letter no: | DCP-LETT-747 |
From C. G. Ehrenberg 15 June 1844
Summary
Thanks for earth samples. Discusses Infusoria in samples from Galapagos and Cape Verde Islands. Would like samples from other sites. Will send further results of investigations.
Author: | Christian Gottfried Ehrenberg |
Addressee: | Charles Robert Darwin |
Date: | 15 June 1844 |
Classmark: | DAR 163: 10 |
Letter no: | DCP-LETT-758 |
To C. G. Ehrenberg 4 July [1844]
Summary
Astonished that dust sample contains Infusoria. Thinks dust is volcanic. Will write account of falling dust [see 775]. Offers further samples.
Author: | Charles Robert Darwin |
Addressee: | Christian Gottfried Ehrenberg |
Date: | 4 July [1844] |
Classmark: | Museum für Naturkunde Berlin (MfN/HBSB, N005 NL Christian Gottfried Ehrenberg Nr. 43) |
Letter no: | DCP-LETT-760 |
From C. G. Ehrenberg 11 July 1844
Summary
Thanks for shipments of earth samples. Sends copy of article describing Infusoria in samples ["Einige vorläufige Resultate … über das Verhalten des kleinsten Lebens in den Oceanen", Ber. k. Preuss. Akad. Wiss. Berlin (1844): 182–207]. Asks for more information and samples, especially from the soundings of Ross’s expedition.
Author: | Christian Gottfried Ehrenberg |
Addressee: | Charles Robert Darwin |
Date: | 11 July 1844 |
Classmark: | DAR 163: 11 |
Letter no: | DCP-LETT-762 |
To C. G. Ehrenberg 5 September [1844]
Summary
Has at last received first letter CGE wrote.
More specimens being sent.
Sends his sketch of paper ["Fine dust in the Atlantic Ocean" (1846), Collected papers 1: 199–203].
D’Orbigny considers Pampas clay deposit result of debacle. CD cannot doubt it is slow, estuary deposit. Would be grateful for information on this point.
Author: | Charles Robert Darwin |
Addressee: | Christian Gottfried Ehrenberg |
Date: | 5 Sept [1844] |
Classmark: | Museum für Naturkunde Berlin (MfN/HBSB, N005 NL Christian Gottfried Ehrenberg Nr. 43) |
Letter no: | DCP-LETT-775 |
To C. G. Ehrenberg 23 January [1845]
Summary
Would like sketch returned [see 775].
Would be particularly thankful for result of CGE’s observations on earth of Pampas.
Asks that Ernst Dieffenbach return copperplate and woodcuts.
Author: | Charles Robert Darwin |
Addressee: | Christian Gottfried Ehrenberg |
Date: | 23 Jan [1845] |
Classmark: | Museum für Naturkunde Berlin (MfN/HBSB, N005 NL Christian Gottfried Ehrenberg Nr. 43) |
Letter no: | DCP-LETT-819 |
From C. G. Ehrenberg 13 March 1845
Summary
Regrets J. D. Hooker did not visit Berlin.
Describes legal difficulties of Ernst Dieffenbach.
Lists species of Infusoria found in dust samples. Discusses origin of Atlantic dust. Discusses Infusoria in cosmetic paint from Tierra del Fuego and Patagonian earth. Thanks CD for samples. Would like samples from sea-bed.
Author: | Christian Gottfried Ehrenberg |
Addressee: | Charles Robert Darwin |
Date: | 13 Mar 1845 |
Classmark: | DAR 39: 59a–c |
Letter no: | DCP-LETT-837 |
To C. G. Ehrenberg 23 March [1845]
Summary
Cannot doubt that Atlantic dust comes from Africa. Could Gulf Stream have brought South American organisms to African coast?
Has come to same conclusion as CGE on volcanic origin of Patagonian stone. Formation extends 550 miles.
Could CGE examine Pampas mud to see if Infusoria are freshwater or salt-water? Results would be important.
Author: | Charles Robert Darwin |
Addressee: | Christian Gottfried Ehrenberg |
Date: | 23 Mar [1845] |
Classmark: | Museum für Naturkunde Berlin (MfN/HBSB, N005 NL Christian Gottfried Ehrenberg Nr. 43) |
Letter no: | DCP-LETT-845 |
From C. G. Ehrenberg 8 April 1845
Summary
Discusses table of Atlantic dust samples. Thinks dust came from South America.
Discusses Patagonian tuff samples.
Answers CD’s query about material from Pampas. Believes deposit made in brackish water.
Criticises account of Atlantic dust in F. J. F. Meyen [Reise um die Erde (1834–5)].
Author: | Christian Gottfried Ehrenberg |
Addressee: | Charles Robert Darwin |
Date: | 8 Apr 1845 |
Classmark: | DAR 39: 60–1b |
Letter no: | DCP-LETT-853 |
To C. G. Ehrenberg 19 April [1845]
Summary
Sends small specimens for CGE to examine if he wishes.
Thanks CGE for his letter on Atlantic Dust: CD hopes to send a little paper to the Geological Society of London.
If CGE should examine Pampæan mud, CD would like to know the result.
Author: | Charles Robert Darwin |
Addressee: | Christian Gottfried Ehrenberg |
Date: | 19 Apr [1845] |
Classmark: | Museum für Naturkunde Berlin (MfN/HBSB, N005 NL Christian Gottfried Ehrenberg Nr. 43 Bl. 9–10) |
Letter no: | DCP-LETT-857F |
To C. G. Ehrenberg 21 May [1845]
Summary
CGE’s account of Pampas mud confirms CD’s view of its origin. Will send Patagonian specimens. Discusses dust-carrying winds in the Atlantic.
Was not referring to F. J. F. Meyen’s voyage.
Corrects error concerning samples.
Author: | Charles Robert Darwin |
Addressee: | Christian Gottfried Ehrenberg |
Date: | 21 May [1845] |
Classmark: | Museum für Naturkunde Berlin (MfN/HBSB, N005 NL Christian Gottfried Ehrenberg Nr. 43) |
Letter no: | DCP-LETT-870 |
From C. G. Ehrenberg 20 October 1873
Summary
Sends an essay ["Mikrogeologische Studien über das kleinste Leben der Meeres-Tiefgründe aller Zonen und dessen geologischen Einfluss", Abhandlungen der Preussischen Akademie der Wissenschaften zu Berlin (1873): 131-98.]
with expressions of admiration. CGE is confident their differences will not estrange them.
Remembers with gratitude the [Atlantic] dust that CD made available to him in 1844 [see 747].
Author: | Christian Gottfried Ehrenberg |
Addressee: | Charles Robert Darwin |
Date: | 20 Oct 1873 |
Classmark: | DAR 163: 12 |
Letter no: | DCP-LETT-9103 |
To C. G. Ehrenberg 30 December 1873
Summary
Thanks CGE for gift of his latest work [Mikrogeologische Studien (1873)].
Author: | Charles Robert Darwin |
Addressee: | Christian Gottfried Ehrenberg |
Date: | 30 Dec 1873 |
Classmark: | Archiv der Berlin-Brandenburgischen Akademie der Wissenschaften (Nachlass Ehrenburg, Nr. 321) |
Letter no: | DCP-LETT-9192 |
To C. G. Ehrenberg 29 October [1845]
Summary
Sends specimens. Asks for information about specimens from Rio Gallegos.
What does CGE mean by the term "Fluthgebiete"?
French translation gives impression that Ehrenberg attributes Pampas deposit to debacle.
Author: | Charles Robert Darwin |
Addressee: | Christian Gottfried Ehrenberg |
Date: | 29 Oct [1845] |
Classmark: | Museum für Naturkunde Berlin (MfN/HBSB, N005 NL Christian Gottfried Ehrenberg Nr. 43) |
Letter no: | DCP-LETT-923 |
From C. G. Ehrenberg 11 March 1846
Summary
Describes Infusoria in Rio Gallegos samples.
"Fluthgebiete" means estuary deposit.
Discusses dust samples from Malta. Asks for further samples.
Author: | Christian Gottfried Ehrenberg |
Addressee: | Charles Robert Darwin |
Date: | 11 Mar 1846 |
Classmark: | DAR 39: 62–3 |
Letter no: | DCP-LETT-960 |
To C. G. Ehrenberg 25[–31?] March [1846]
Summary
Sends copy [of "Fine dust in the Atlantic Ocean", Collected papers 1: 199–202]. Attempting to obtain further samples for CGE.
Author: | Charles Robert Darwin |
Addressee: | Christian Gottfried Ehrenberg |
Date: | 25[–31?] Mar [1846] |
Classmark: | Museum für Naturkunde Berlin (MfN/HBSB, N005 NL Christian Gottfried Ehrenberg Nr. 43 Bl. 15–17) |
Letter no: | DCP-LETT-965 |
letter | (18) |
Darwin, C. R. | (12) |
Ehrenberg, C. G. | (6) |
Ehrenberg, C. G. | (12) |
Darwin, C. R. | (6) |
Darwin, C. R. | (18) |
Ehrenberg, C. G. |