Copy letter from Robert William Frederick Harrison, to Professor Wyndham Rowland Dunstan, Fellow of the Royal Society 'Dear Professor Dunstan, Soirée Kindly send ^the^ descriptive notice of your exhibit as soon as possible. With regard to space it will hardly be possible, in view of other and earlier arrangements, to provide more than, say, 7ft. 10in. frontage x 3ft. 10in. depth. The fair amount of depth would no doubt help you, however. I am, faithfully yours, Robt [Robert] Harrison Assistant Secretary R.S. [Royal Society]'. 30 April 1907