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To Daniel Sharpe   [19 January 1847]

Summary

Comments on letter by Bernhard Studer ["Remarks on the geological relations of the gneiss of the Alps", Edinburgh New Philos. J. 42 (1846–7): 186] and on article by DS ["On slaty cleavage", J. Geol. Soc. Lond. 3 (1847): 74–105]. Discusses geological cleavage and foliation.

Author:  Charles Robert Darwin
Addressee:  Daniel Sharpe
Date:  [19 Jan 1847]
Classmark:  The British Library (Add MS 42240: 21–2)
Letter no:  DCP-LETT-1052

To Daniel Sharpe   [23 January 1847]

Summary

Comments on manuscript [? "On slaty cleavage", J. Geol. Soc. Lond. 5 (1849): 111–29]. Discusses phenomenon of cleavage. Will write to J. D. Forbes about DS’s paper.

Author:  Charles Robert Darwin
Addressee:  Daniel Sharpe
Date:  [23 Jan 1847]
Classmark:  UCL Library Services, Special Collections (PEARSON/10/1)
Letter no:  DCP-LETT-1083

DCP-LETT-1049

Summary

Cancelled: same as 1083. Discusses manuscript by DS on slaty cleavage. Thinks of cleavage analogous to his own explanation of laminated lava.

Author:  Daniel Sharpe
Addressee:  Charles Robert Darwin
Date:  [23 Jan 1847]
Classmark:  DAR 147: 473
Letter no:  DCP-LETT-1049
Document type
letter (3)
Addressee
Correspondent
Darwin, C. R.[X]
Sharpe, Daniel[X]
Date
1847
01
19 (1)
23 (2)
letter