Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to The Editor, "Nature" 'Dear Sir, In reply to your letter of yesterday, you have not received lists of probable papers lately because it has not been possible to fix readings more than a week in advance. There is no intention of discontinuing the list of probable papers [if] it can be drawn up 10 days in advance. I enclose a card of meetings.' 23 March 1916