Copy letter from Herbert Rix, to Professor Arthur Schuster, Fellow of the Royal Society 'Dear Sir, The portion of your Report referred to in yours of 6th ins [instant] to hand together with the drawing. The paper will date from the day of receiving the completion: we do not register until the ms [manuscript] is complete. I shall have to trouble you for an abstract of the paper for publication in the Proceedings ['Proceedings of the Royal Society']. I am faithfully yours, Herbert Rix'. 7 January 1889