Copy letter from Robert William Frederick Harrison, to Claude Vauton, 412 Salisbury House, London Wall, E.C. Regarding his request for a copy of a letter which he thought had been sent in early 1894 asking him to exhibit at the Soiree, the letter book has been consulted but there is no record of any such letter. In all probably he in fact received a printed circular inviting him to exhibit on the recommendation of Professor [Silvanus Phillips] Thompson. 29 July 1913