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From James Croll   22 October 1881

Summary

Thanks for presentation copy of Earthworms.

Author:  James Croll
Addressee:  Charles Robert Darwin
Date:  22 Oct 1881
Classmark:  DAR 161: 267
Letter no:  DCP-LETT-13421

From James Croll   23 September 1868

Summary

Sends two papers; glad CD appreciates two he has already sent. Cannot send two others on glaciers (Philosophical Magazine, 1866 and 1867).

Author:  James Croll
Addressee:  Charles Robert Darwin
Date:  23 Sept 1868
Classmark:  DAR 161: 261
Letter no:  DCP-LETT-6388

From James Croll   2 December 1868

Summary

Sends abstract of his views on change of climate and a copy of a paper.

Author:  James Croll
Addressee:  Charles Robert Darwin
Date:  2 Dec 1868
Classmark:  DAR 161: 262
Letter no:  DCP-LETT-6489

From James Croll   [2 December 1868]

Summary

Glacial climates.

Author:  James Croll
Addressee:  Charles Robert Darwin
Date:  [2 Dec 1868]
Classmark:  DAR 50: E3–8
Letter no:  DCP-LETT-6489F

From James Croll   4 February 1869

Summary

Argues for great age of earth before the Cambrian period. Opposes measuring age from secular cooling. Opposes Sir William Thomson. Lyell’s error on secular cooling.

Thanks for Moseley citation ["On the mechanical possibility of the descent of glaciers", Proc. R. Soc. Lond. 17 (1869): 202–8].

In Edinburgh he feels out of touch with latest developments.

Author:  James Croll
Addressee:  Charles Robert Darwin
Date:  4 Feb 1869
Classmark:  DAR 161: 263
Letter no:  DCP-LETT-6599

From James Croll   15 February 1869

Summary

Thanks for abstract of Moseley’s paper on motion of glaciers [see 6599]. Reading it convinced him that Tyndall’s received view is wrong. Has formed a new view, which he has sent to Philosophical Magazine [4th ser. 37 (1869): 201–6].

Author:  James Croll
Addressee:  Charles Robert Darwin
Date:  15 Feb 1869
Classmark:  DAR 161: 264
Letter no:  DCP-LETT-6616

From James Croll   23 June 1869

Summary

Thanks for presentation copy of Origin [5th ed.].

Clarifies his point on north and south glacial periods. Supports CD’s view that temperate plants will move up mountains during the alternation.

Author:  James Croll
Addressee:  Charles Robert Darwin
Date:  23 June 1869
Classmark:  DAR 161: 265
Letter no:  DCP-LETT-6799

From James Croll   17 August 1871

Summary

Refused to write a treatise on geological time.

His paper on W. B. Carpenter’s theory of ocean currents is appearing soon.

Author:  James Croll
Addressee:  Charles Robert Darwin
Date:  17 Aug 1871
Classmark:  DAR 161: 266
Letter no:  DCP-LETT-7908
Document type
letter (8)
Author
Croll, James[X]
Addressee
Correspondent
Croll, James[X]
Darwin, C. R.[X]
Date
1868 (3)
1869 (3)
1871 (1)
1881 (1)
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