Copy letter from Archibald Geikie to Dr [Charles] Chree, Fellow of the Royal Society 'Dear Dr Chree, just a few lines to acknowledge your letter of 27th inst[ant] with its enclosed memorandum regarding the Christ Church magnetic observations. The account of [posh] material seems rather staggering but perhaps when the Director sees you have laid your heads together you may see some way of coping with it in some reasonable time.' 29 April 1908