Copy letter from Herbert Rix, to Samuel George Shattock, St Thomas's Hospital Medical School 'Dear Sir, I mistook the MS. [manuscript] which you sent me for a paper intended to appear in 'Proceedings' ['Proceedings of the Royal Society']. I now understand that it was a report for the information of the Government Grant Committee. Apologizing for the inconvenience to which I have put you, I remain, yours faithfully, H Rix Asst. Sec. R.S. [Assistant Secretary, Royal Society]'. 6 May 1889