Copy letter from Robert William Frederick Harrison, to Dr John Scott Keltie, 1 Savile Row, W. Encloses a programme as far as they have it [not enclosed]. There are several things that they did not have in May [Soiree], including an exhibit by Dewar, and a little lecture, with diamond experiments, by Sir William Crookes, who is going to give a demonstration in the afternoon to the press. Presumes Lady Rayleigh will receive with the President [John William Strutt]. 19 June 1906