From James Croll   23 September 1868

Edinburgh.

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

2
Croll evidently sent Croll 1867a and 1867b; these are in the Darwin Pamphlet Collection–CUL.
3
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.

Please cite as “DCP-LETT-6388,” in Ɛpsilon: The Charles Darwin Collection accessed on 5 June 2025, https://epsilon.ac.uk/view/dcp-data/letters/DCP-LETT-6388