Copy letter from Herbert Rix, to Dr Charles Scott Sherrington, Fellow of the Royal Society 'Dear Dr Sherrington, Dr Foster wishes me to tell you that we are putting in hand the diagrams which Prof. [Professor Santiago Ramon y] Cajal has sent us, and that we shall not now be able to use the photographs as well. Yours truly, H Rix Asst. Sec. R.S. [Assistant Secretary, Royal Society]'. 27 April 1894