Copy letter from Herbert Rix, to Sir Isaac Lowthian Bell, Fellow of the Royal Society 'Dear Sir Lowthian, Enclosed herewith you will find a receipt for 21/- amount of your cheque for the Stokes Portrait Fund. In answer to you postscript, the "I" was a note of interrogation, because you had not promised any definite amount. The maximum fixed to £5. Yours truly Herbert Rix Asst Sec RS [Assistant Secretary, Royal Society]'. 15 January 1892