Letter from Robert Holford Macdowall Bosanquet, on his paper 'The theory of the division of the octave, and the practic treatment of the musical systems thus obtained. Revise version of a paper entitled 'On just intonation in music with a description of a new instrument for the easy control systems of tuning other than the equal temperament of 1 divisions in the octave' to the Secretary of the Royal Society Letter in response to referee's opinions on his paper. Subject: Musical theory [Published in Proceedings of the Royal Society, 1874]. 23 November 1874