Copy letter from Robert William Frederick Harrison to the Secretary, the Associated Board of the Royal Academy of Music &c, 15 Bedford Square, WC 'In reply to your letter of the 17th instant I much regret that it has been necessary to decline all the applications which we usually gladly accede to for meetings of extraneous bodies in the Royal Society's rooms in July, on account of the arrangements connected with the projected celebration of the Society's 250th Anniversary.' 20 May 1912