skip to content

Darwin Correspondence Project

Search Results

Darwin Correspondence Project
Search:
in the full text  [X]
letter in document-type [X]
1855::01 in date [X]
Lyell, Charles in addressee [X]
3 Items
Sorted by:  
Page: 1

To Charles Lyell   10 January [1855]

Summary

Discusses views of Daniel Sharpe on foliation and cleavage. Recalls his own previous discussion [in South America].

Author:  Charles Robert Darwin
Addressee:  Charles Lyell, 1st baronet
Date:  10 Jan [1855]
Classmark:  American Philosophical Society (Mss.B.D25.110)
Letter no:  DCP-LETT-1626

To Charles Lyell   14 January [1855]

Summary

Has found a house on Baker Street to take for a month.

Mentions Daniel Sharpe’s study of the Grampians.

Association of various metamorphic rocks and relationship of their foliation to their dip and strike. Discusses foliation of schists and its origin. Comments on fluidity of gneiss and schists.

Author:  Charles Robert Darwin
Addressee:  Charles Lyell, 1st baronet
Date:  14 Jan [1855]
Classmark:  American Philosophical Society (Mss.B.D25.111)
Letter no:  DCP-LETT-1630

To Charles Lyell   [21 January – 11 February 1855]

Summary

Relationship of schists to alternating beds of slate in western Tierra del Fuego and the Chonos Islands.

Comments on Sharpe’s theory of curved cleavage planes.

Example of metamorphosis in a "clay-slate porphyry region". Importance of previous lines of cleavage and stratification in foliation of metamorphosed rock.

Author:  Charles Robert Darwin
Addressee:  Charles Lyell, 1st baronet
Date:  [21 Jan – 11 Feb 1855]
Classmark:  American Philosophical Society (Mss.B.D25.112)
Letter no:  DCP-LETT-1633
Document type
letter[X]
Author
Addressee
Lyell, Charles[X]
Correspondent
Date
1855
01
10 (1)
14 (1)
21 (1)