Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to the Secretaries of the Physical Society of London; National Physical Laboratory, Teddington Informs the Secretaries that the Society is increasing the price charged for their Publications to approximately 50% in advance of the pre-war price. Notes that a number of Fellows of the Physical Society subscribe to their 'Proceedings' at a fixed rate of 21/- a year, and that this will be raised to 31/6. Suggests that this arrangement is no longer advantageous to the Fellows of the Physical Society and that it be discontinued. 16 March 1921