Copy letter from Herbert Rix, to A Fowler, Royal College of Science 'Dear Mr Fowler, Plates II is gone to Woodburytype for a fresh trial. As to plate IV I understand that this only the old copy? I am not to do anything with it, am I? becuase Plate IV is already passed by Mr Lockyer. Plate V I understand is to come presently with amendment for a new trial. Yours truly Herbert Rix Asst. Sec. RS [Assistant Secretary, Royal Society]'. 26 July 1893