Copy letter from Herbert Rix, to [John William Strutt] Lord Rayleigh, [Royal Society] Rix asks whether he may accept the enclosed estimate, and he notes that the plans of arrangement have gone to Professor William Edward Ayrton for approval. He also notes that the Waterston's communication to the British Association is to be printed as an appendix in 'Philosophical Transactions of the Royal Society', and asks if Rayleigh has obtained permission from the Association, and if not, whether it will be necessary before publishing. 1 January 1892