Copy letter from Robert William Frederick Harrison to Miss M Salter, 2 Linden Gardens, Chiswick 'Dear Madam, Sir Archibald Geikie has asked me to reply to your letter of this date and to say that he is not in charge of the magazine you refer to. He would suggest your writing to the Editor in General Charge, Mr T C Chamberlin, at the University of Chicago.' 25 May 1909