Copy letter from Robert William Frederick Harrison, to The Secretary, The Institution of Mechanical Engineers Harrison has made enquiries of those engaged upon the preparation of the Catalogue of Scientific Papers, and finds that the task of seeing the Subject Index relating to Mechanics through the press is well under way, and Harrison has every hope that the volume will be published before the end of the year. The copy for the Physics index is now being arranged for press, and fears that there is not much hope of seeing that volume before the end of next year. 15 October 1909