Copy letter from Robert William Frederick Harrison, to the Editor, "The Graphic" 'Dear Sir, I am instructing our printers, Messrs Harrison and Sons, St. Martin's Lane, W.C., to prepare and send you electros of the figures on Plate I of the Proceedings [of the Royal Society], Vol. 77 A, (Lowell), together with their account for the work. I understand that you will make due acknowledgement of the source from which the illustrations are reproduced. I am, faithfully yours, Robert Harrison'. 13 July 1907