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Darwin Correspondence Project

From James Croll   23 September 1868


Sept 23d. 1868.

Dear Sir,

I am delighted to find that you are so well pleased with the two papers which I sent.1

I have taken the liberty forwarding to you by Book post two other papers which may interest you which please to accept.2

I am sorry that it is not within my power to send you a copy of a paper on the Excentricity of the Earth’s Orbit and its relation to the Glacial Epoch which appeared in the Phil. Mag. for February 1867, and one on the Physical Cause of the Submergence of the Land during the Glacial Epoch. Phil. Mag. for April 1866.3

I am | Yours very truly | James Croll

Charles Darwin Esq M.A. FRS &c


Croll evidently sent Croll 1867a and 1867b; these are in the Darwin Pamphlet Collection–CUL.
Croll refers to Croll 1867c and 1866. CD had probably read earlier work of Croll’s on the same subject; see Correspondence vol. 14, letter to J. D. Hooker, [28 February 1866] and n. 7.


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


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

Letter details

Letter no.
James Croll
Charles Robert Darwin
Sent from
Source of text
DAR 161: 261
Physical description

Please cite as

Darwin Correspondence Project, “Letter no. 6388,” accessed on 16 September 2021,

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