Copy letter from Herbert Rix, to William Henry Preece, Fellow of the Royal Society 'Dear Mr Preece, It is now less than a week to the Soirée & we have heard nothing definite about the telephone exhibit. Can you tell us yet what to enter in the programme. Also, whether there is anything for us to do in the way of getting permission from the Board of Works for overhead wires or whatnot? Yours truly H Rix Asst Sec [Assistant Secretary]'. 11 June 1891