Copy letter from Michael Foster, to Edward Nolan, Secretary, Academy of Natural Sciences, Philadelphia, Penn [USA] 'Sir, Your letter of November 11 was laid before the President and Council of the Royal Society at their last meeting, and I was directed to address Her Majesty's Postmaster-General in the sense of your letter, which has accordingly been done. I am, Sir, your obedient servant, M Foster Sec. R.S. [Secretary, Royal Society]'. 14 December 1893