Copy letter from Herbert Rix, to M Walton Brown, Federated Institution of Mining Engineers, Newcastle-upon-Tyne 'Dear Sir, I am obliged to you for your note of the 8th inst. [instant] offering for sale in a charitable cause a set of the Bulletin of the Societe de l'Industrie Minerale. I find upon enquiry that the publication, though valuable, is too technical to be of use in this library. Should I hear of any likely purchase I will let you know. I am, yours truly, H Rix Asst. Sec. R.S. [Assistant Secretary, Royal Society]'. 21 February 1896