Royal Geographical Society | 15, Whitehall Place, S.W.
March 29 1865
My Dear Mr Darwin
Enclosed is the promised portrait.1 Will you do me the favour to send me yours for my album;2 the larger one you gave me in 1862 now hangs up in my study.3
I sent a copy of “Mimetic Butts. to Mr Walsh.4 We are overwhelmed here with North Pole business.5
No reply to this request has been found; however, CD may have sent the photograph taken by William Erasmus Darwin in April or May 1864, which is reproduced as the frontispiece to Correspondence vol. 12 (see also ibid., letter from J. D. Hooker, [11 June 1864]).
Bates refers to the efforts made by the council of the Royal Geographical Society to obtain government sponsorship for an expedition to the North Pole (see Journal of the Royal Geographical Society 33 (1865): clxxix–clxxxii); Bates was assistant secretary of the society.