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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

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

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

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

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
Document type
letter (5)
Correspondent
Darwin, C. R.[X]
Ehrenberg, C. G.[X]
Date
1844
04 (1)
06 (1)
07 (2)
09 (1)
letter