Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Sir William [Henry] Bragg, FRS Informs Sir William [Henry] Bragg that the meeting of the International Union of Physics in Paris has been altered to coincide with the Bicentenary Celebrations of the Physical Society of France, and so he might ask Lord Rayleigh to go to both as a delegate of the National Committee for Physics. 23 November 1923