Copy letter from Robert William Frederick Harrison to Axel Welin, Hopetown House, Lloyd's Avenue, EC 'I have to acknowledge your letter of the 26th instant and to say that the practice of the Royal Society hardly admits of arranging for such a lecture as you propose to deliver here. I think, however, that if you were to address yourself to the Royal Society of Arts, John Street, Adelphi, WC, the subject in which you are interested might be found more appropriate to their procedure.' 28 November 1912