Copy letter from Archibald Geikie, to John Milne, [Fellow of the Royal Society] Glad that the seismological films[?] have at last reached him. No doubt he will require to see Bernacchi and Geikie presumes he will visit Milne to go over any points. Both Geikie and Dr Joseph Larmor think Milne should better look to the diurnal waves and deflections accompanying barometric fluctuations. 21 November 1904