Copy letter from Herbert Rix, to Dr James Samuel Risien Russell, 4 Queen Anne Street, Cavendish Square, W. 'Dear Sir, When you called about your illustrations you told me that Prof. [Professor] Victor Horsley intended writing to Dr [Michael] Foster, urging that a photographic process should be used for your brains. Dr Foster seems to have heard nothing from Prof. Horsley, and I should be glad to know if the matter is still in mind. Yours truly, H Rix Asst. Sec. R.S. [Assistant Secretary, Royal Society]'. 24 July 1894