Copy letter from Herbert Rix, to J W Rodger, Royal College of Science, South Kensington, S.W. 'Dear Sir, I have now the pleasure to inform you that the permission has been formally given by the President and Council of the Royal Society to reprint in the "Zeitschrift für physikalische Chemie" the paper by yourself and Mr Watson on "Magnetic Rotation". I am, yours faithfully, H Rix Asst. Sec. R.S. [Assistant Secretary, Royal Society]'. 6 December 1895