Copy letter from Archibald Geikie, to Professor John Milne, [Fellow of the Royal Society] 'Dear Milne, Will you let me know at your early convenience what date in March would suit your convenience for giving the Bakerian Lecture. Any Thursday but the 15th would suit us. If you could restrict yourself to three quarters of an hour it would enable us to dispose of one or two papers afterwards. Yours truly, Arch [Archibald] Geikie'. 8 February 1906