Copy letter from Herbert Rix, to Henry Richardson, Librarian, Literary and Philosophical Society, Newcastle-on-Tyne 'Dear Sir, The "Philosophical Transactions" ['Philosophical Transactions of the Royal Society'] if granted by our Committee would be subsequent to 1800 and prior to 1889. Beyond this I am afraid I cannot give you any information. Yours truly, H Rix Asst. Sec. R.S. [Assistant Secretary, Royal Society]'. 26 February 1894