Copy letter from Robert William Frederick Harrison to Professor H [Hugh] L [Longbourne] Callendar FRS 'Dear PRofessor Callendar, Sir Joseph Larmor thinks it desirable to hold a meeting of the Physics and Chemistry Sectional Committee before Easter to clear up outstanding business, and he suggested Tuesday, MArch 15th, at 4 o'clock for the meeting - subject of course to your convenience, and concurrence as Chairman. Will you please let me know whether the suggested date and time are convenient for you, and if not, will you please say what date or dates would suit you better.' 7 March 1909