Copy letter from Michael Foster, to Professor Rücker and Professor Thorpe, Fellows of the Royal Society Communicates the resolution adopted by the President and Council of the Royal Society at their last meeting on 28 February, that the Bakerian Lecture for this year be delivered by Professor Rücker and Professor Thorpe, with the subject 'On a magnetic survey of the British Isles for the Epoch January 1, 1886'. The date of the lecture is intended to be 11 April. 9 March 1889