Copy letter from Robert William Frederick Harrison to Professor C [Charles] S [Scott] Sherrington FRS 'I should be greatly obliged if you would let me have as soon as possible your reply to the official enquiry whether you accept service as a delegate of the Royal Society to the International Association of Academies meeting at St Petersburg at Whitsuntide. Sir David Prain, to whom I wrote at the same time, has replied, and it is important that I should send the names of the delegates to St Petersburg with as little delay as possible.' 6 March 1913