Copy letter from Robert William Frederick Harrison, to Professor Arthur Smithells Replying to Smithells' enquiry about the new curves for his paper, Harrison says that there is no need to reduce the drawing to the size of the Philosophical Transactions paper as the engraver will see to that. No general instructions for authors other than asking them to always send in diagrams of figures as well drawn as possible accompanied by any remarks for the guidance of the engraver. 9 January 1899