Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Dr J. E. Jones; at Westfield House, Stoke Bishop, Britstol In reply to Dr [John Edward Leonard] Jones' letter, informs him that the extra copy of his summary of his paper 'Some Theoretical Calculations of the Physical Properties of Certain Crystals' is not now required, as the paper was read in title on 25 June. 1 July 1925