To Auguste Laugel   4 September [1864]1

Down Bromley | Kent

Sept. 4th.

Dear Sir

I thank you sincerely for the renewed proof of your kindness in sending me your Problèmes de la Nature”.2 I have not yet read any part for I see that it will require much attention; but I hope soon to read it & I am sure that it will give me much pleasure. I have had a very long & bad illness & am still very far from strong & am afraid to exercise my mind much.3 I fear I shall never again have much strength but hope still to do a little more work in Natural History—

With sincere respect & with my best thanks, I remain | Dear Sir | Yours truly obliged | Charles Darwin

The year is established by the reference to Laugel 1864 (see n. 2, below).
There is a copy of Laugel 1864 in the Darwin Library–Down.
For CD’s health at this time, see Correspondence vol. 13, Appendix IV.

Please cite as “DCP-LETT-4607F,” in Ɛpsilon: The Charles Darwin Collection accessed on 5 June 2025, https://epsilon.ac.uk/view/dcp-data/letters/DCP-LETT-4607F