Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to F. A. Williams Esq.; The Woodlands, Crescent Road, Crumpsall, Manchester Informs F. A. Williams that the time allowed for reading papers is about 10 minutes, and encloses a proof of the figure that Williams will require, from which he could arrange for a lantern slide to be made. [Enlosure not present.] 20 November 1925