Copy letter from Herbert Rix, to the Direct Photo-Engraving Company, 9 Barnsbury Park, N. 'We have here ['Inclosed herewith is' crossed out] a pencil drawing to illustrate a prospective paper by Prof. [Professor James Cossar] Ewart. Will you kindly let some one call and see me that he may give us information on the following points:- (1) Can ^five^ pencil drawings ['made as inclosed' crossed out] be well reproduced by a photographic process, or, (2) ought the drawings be made in ink? ['Please return the drawing by the hands of your representative' crossed out] HR'. 11 April 1896