Copy letter from Herbert Rix, to M G J Petrovitch, 18 Rue Dauphine, Paris 'In answer to your letter of the 4th, I regret to inform you that the Royal Society do not at present find themselves able to undertake the "Table Méthodique" of which you speak. I am, Yours obediently Herbert Rix, Asst. Sec. RS [Assistant Secretary, Royal Society]'. 5 October 1887