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 |
From J. D. Hooker [late February 1845]
Summary
Previous letter [missing] on Edinburgh position was ill-tempered. Friends assure him that he ought to be thankful for opportunity to try for professorship.
Reports meeting with Humboldt in Paris.
| Author: | Joseph Dalton Hooker |
| Addressee: | Charles Robert Darwin |
| Date: | [late Feb 1845] |
| Classmark: | DAR 100: 165–6 |
| Letter no: | DCP-LETT-832 |
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 |
Matches: 1 hit
- … Ehrenberg’s information see South America , pp. 111, 118–19, 248. Ehrenberg 1845b , p. 147. CD used these results in South America , p. 81. If the Pampas mud had been deposited in fresh or brackish water, it would explain the absence of shells and the presence of large numbers of fossil mammal remains (see South America , pp. 98–9, and letter to C. G. …
| letter | (3) |
| Ehrenberg, C. G. | (2) |
| Hooker, J. D. | (1) |
| Darwin, C. R. | (3) |
| Ehrenberg, C. G. | (2) |
| Hooker, J. D. | (1) |
