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Darwin Correspondence Project

From James Croll   2 December 1868


Decr. 2d. 1868.

Dear Sir,

Under another cover I send you a rough abstract of my views on change of climate   Along with that I enclose a copy of my paper on the subject, so that you can refer to some points that I could not well explain in the M.S without extending it to an unsuitable length.1

I am sorry I cannot make you a present of the small vol. You may however keep it beside you as long as you wish, for I have another copy to which I can refer.2

Should you find any points not clearly stated I shall be delighted to afford you further explanations.

And if you find, as no doubt you will, some points where you have reason to believe I am in error, I shall take it kindly indeed if at your leisure you will drop me a note on the subject expressing your opinion freely. In a subject like this, so new and so complicated, one always feels anxious lest they may go off the path.

I am, | Yours very truly, | James Croll.

Charles Darwin Esq. m.a.


In his letter of 24 November 1868, CD had asked for clarification of Croll’s views on climate change during ice ages. For Croll’s abstract, see the letter from James Croll, [2 December 1868]. The ‘paper’ Croll enclosed was probably a collection of earlier published papers, possibly with the addition of some unpublished material (see n. 2, below). Croll later published a book, Climate and time (Croll 1875), in which he drew together all the material that had appeared in his earlier papers on the topic.
CD returned the volume, which evidently contained all of Croll’s papers up to that time, in February 1869 (see letter to G. H. Darwin, [9 December 1868], and Correspondence vol. 17, letter to James Croll, 31 January [1869]).


Correspondence: The correspondence of Charles Darwin. Edited by Frederick Burkhardt et al. 27 vols to date. Cambridge: Cambridge University Press. 1985–.


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

Letter details

Letter no.
James Croll
Charles Robert Darwin
Sent from
Source of text
DAR 161: 262
Physical description
3pp, encl 6pp

Please cite as

Darwin Correspondence Project, “Letter no. 6489,” accessed on 28 September 2021,

Also published in The Correspondence of Charles Darwin, vol. 16