Copy letter from Herbert Rix, to Professor George Downing Liveing, Fellow of the Royal Society In reference to Liveling's recent paper, number 48, Rix outlines three ways in which the plates could be arranged. He outlines the objections to options one and two, and asks whether the second option would be preferable, clarifying that it would combine the last of the cobalt plates with the last of the nickel plates. Rix encloses a tissue paper plan to clarify [not included]. 23 March 1888