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Darwin Correspondence Project

To Rudolf Suchsland   21 April [1866]1

Down. | Bromley. | Kent. S.E.

[Asking for additional details of an edition of Confessions of a Metaphysician by Count Mariani of Florence2, which he can read] if it were in French […] but German is too hard work for me without confusion. […] you must have the kindness to inform me, if I do not hear I shall understand that it is, as far as you know, in German or Italian

With my best thanks I remain Dear Sir | Yours faithfully | Ch Darwin


The date is given in the Kotte sale catalogue, and the year is confirmed by the relationship between this letter and the letter from Rudolf Suchsland, 16 April 1866 (see n. 2, below).
In his letter of 16 April 1866 (Correspondence vol 14), Suchsland had mentioned that the second volume of Confessioni di un metafisico by Terenzio Mamiani della Rovere (Mamiani della Rovere 1865) dealt with CD’s theory.


Asks for additional details of Confessions of a Metaphysician.

Letter details

Letter no.
Charles Robert Darwin
Georg Rudolf Emil (Rudolf) Suchsland
Source of text
Sotheby’s (dealers) (16 December 2010); Kotte Autographs (March 2016)
Physical description

Please cite as

Darwin Correspondence Project, “Letter no. 5057F,” accessed on 17 September 2021,

Also published in The Correspondence of Charles Darwin, vol. 24 (Supplement)