Autograph letter signed.
Haslemere, Hind Head House, 17 Oct. 1889.
8vo (115 x 180 mm). 1 p. on bifolium.
€ 1,500.00
A cordial letter to the German physician René Du Bois-Reymond (1863-1938), a fellow mountaineer: "I have just returned from the spot where I had the pleasure of meeting you after your escalade of the Jungfrau. Here in Surrey I find your 'Inaugural Dissertation' with pleasant words upon its title-page, awaiting me. I thank you very much for it, and wish that it may prove the beginning of a career comparable in brilliancy to that of my friend your father [...]". René was the son of Emil Heinrich Du Bois-Reymond, a physiologist based in Berlin.
Name of the recipient pencilled to upper left corner. Well preserved.