Copy letter from Arthur Schuster, to [Henry Reginald Arnulph] Mallock, Fellow of the Royal Society There is a difficulty about the publication of his paper on copying machines. Sending sheets written by one of the referees which will give him an idea of what it is [no enclosures]. This referee, with the second in substantial agreement, might go forward for 'Proceedings [of the Royal Society]'. 26 July 1913