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To William Benjamin Carpenter   [11 or 18 December 1844]

Summary

Thanks WBC for offer to examine specimen and for offer of slices of shells, but has no achromatic microscope.

Author:  Charles Robert Darwin
Addressee:  William Benjamin Carpenter
Date:  [11 or 18] Dec 1844
Classmark:  University of Rochester Libraries, Department of Rare Books, Special Collections and Preservation
Letter no:  DCP-LETT-753

To William Benjamin Carpenter   6 December [1844]

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Summary

Asks WBC if he will examine a specimen of calcareous rock.

Author:  Charles Robert Darwin
Addressee:  William Benjamin Carpenter
Date:  6 Dec [1844]
Classmark:  DAR 185: 114
Letter no:  DCP-LETT-797F

To William Benjamin Carpenter   25 December [1844]

Summary

Is obliged for the account of the structure of the Pampas specimen and its difference from specimens of the modern calcareous bed of Coquimbo in Chile. If he thinks that J. S. Bowerbank can make out the nature of the specimens, they should be shown to him.

Author:  Charles Robert Darwin
Addressee:  William Benjamin Carpenter
Date:  25 Dec [1844]
Classmark:  Jeffrey D. Stillwell (private collection)
Letter no:  DCP-LETT-803A

From W. B. Carpenter   21 December 1844

Summary

Discusses microscopic examination of rock specimens taken from Pampas deposit and from Chilean tuff. Says he finds organic remains only in the tuff.

Author:  William Benjamin Carpenter
Addressee:  Charles Robert Darwin
Date:  21 Dec 1844
Classmark:  DAR 39: 33–5
Letter no:  DCP-LETT-802
Document type
letter (4)
Correspondent
Carpenter, W. B.disabled_by_default
Darwin, C. R.disabled_by_default