Copy letter from Robert William Frederick Harrison, to H B Malden, 7 South Square, Gray's Inn, W.C. 'Dear Sir, I regret that it is not in my power to issue cards of invitation to the Royal Society's Conversazione, outside the list, which is settled by a Committee of the Society. I am, faithfully yours, Robt [Robert] Harrison Assistant Secretary, R.S. [Royal Society]'. 4 June 1907