Copy letter from Edwin Deller, Acting Assistant Secretary of the Royal Society; to Professor WH [Sir William Henry] Bragg, FRS, OBE Advises that the President [Sir Joseph John Thomson, PRS] and Council of the Royal Society have granted permission for the reproduction in the 'Illustrated London News' and a subsequent book by Professor William Henry Bragg, FRS, of figures illustrating the papers of Professor [Arthur Mason] Worthington, FRS, and Mr [Henry Reginald Arnulph] Mallock, FRS, in the 'Transactions of the Royal Society' and 'Proceedings of the Royal Society.' 25 February 1920