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From Charles Lyell   1 March 1866

Summary

Feels sure that at times the globe must have been superficially cooler. Believes CD will turn out right with regard to migration across the equator via mountain chains, while the tropical heat of certain lowlands was retained.

Author:  Charles Lyell, 1st baronet
Addressee:  Charles Robert Darwin
Date:  1 Mar 1866
Classmark:  DAR 91: 89–90
Letter no:  DCP-LETT-5024

From Charles Lyell   5 March 1866

Summary

Surprised at Hooker’s introducing "so organic a change as a deviation in the axis of the planet" to explain the cold of the Glacial Period.

Author:  Charles Lyell, 1st baronet
Addressee:  Charles Robert Darwin
Date:  5 Mar 1866
Classmark:  ML 2: 158
Letter no:  DCP-LETT-5027

From Charles Lyell   10 March 1866

Summary

Comments on cool-period MS. Still believes geographical changes principal cause of former changes of climate.

Author:  Charles Lyell, 1st baronet
Addressee:  Charles Robert Darwin
Date:  10 Mar 1866
Classmark:  K. M. Lyell ed. 1881, 2: 408–9
Letter no:  DCP-LETT-5031
Document type
letter (3)
Author
Lyell, Charles[X]
Addressee
Correspondent
Date
1866
03
01 (1)
05 (1)
10 (1)
letter