Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Selig] Brodetsky; University of Leeds In reference to Professor [Selig] Brodetsky's Newton Lecture, apologises that the Royal Society does not have the print Brodetsky is looking for, suggests the Guildhall or London Museum. Informs Brodetsky that the Royal Society does not have a portrait of Conduitt, but has two portraits of Isaac Barrow which could be photographed. 9 November 1923