I heard from Bates this afternoon that you were in town & had kindly inquired after me—2 When can I have the pleasure of seeing you?3 I can call at any day & hour if you will send me a postcard—
The year is established by the date of the Darwins’ stay in London. Although CD was in London on 25 March in both 1872 and 1873, Reade had already visited him on 19 March 1872 (Correspondence vol. 20, Appendix II).