Copy letter from Herbert Rix, to F H Michael, Stamford Bridge Studios, Fulham, S.W. 'Dear Sir, Your estimate for making the drawings for Prof. [Professor Thomas George] Bonney is accepted. I presume you have received full instructions from him, and you may, therefore, put them in hand without delay. Yours truly, H Rix Asst. Sec. R.S. [Assistant Secretary, Royal Society]'. 27 June 1894