Copy letter from Herbert Rix, to Professor Arthur Mason Worthington, Fellow of the Royal Society 'Dear Sir, You have already paid your annual contribution, and no further payment is required before admission. The formalities are exceedingly simple, and it will be sufficient to see me in the anteroom a few minutes before the meeting. Yours truly, H Rix Asst. Sec. R.S. [Assistant Secretary, Royal Society]'. 2 November 1893