Copy letter from Herbert Rix, to Dr [John Berry] Haycraft, Physiological Laboratory, University, Edinburgh 'Dear Dr Haycraft, Dr Michael Foster has instructed me to get clichés prepared of the illustrations to your striped muscle paper, in anticipation of the leave of Council. I must explain that the original blocks never under any circumstances leave the house, but that the clichés can be sent to you at your own expense & that the expense of clichés is very small. Yours truly Herbert Rix Asst. Sec. R.S. [Assistant Secretary, Royal Society]'. 15 May 1891