Copy letter from Herbert Rix, to A L Haddon, 9 Sutherland Place, W 'Dear Sir, In answer to your letter of Decr [December] 21 - there is but one way in which a subject can be brought before the Royal Society, namely, by sending in a MS. [manuscript] account of the experiments. The MS., moreover, cannot be registered, or brought before the Society unless it is endorsed with the name of a Fellow of the Royal Society, who is prepared to say that the MS is suitable for reading before the Royal Society. Yours truly H Rix Asst Sec RS [Assistant Secretary, Royal Society]'. 4 January 1892