ix, 320 pp. Eleanor Mildred Sidgwick, (née Balfour; 11 March 1845 – 10 February 1936), known as Nora to her family and friends, was a physics researcher assisting Lord Rayleigh, an activist for the higher education of women, Principal of Newnham College of the University of Cambridge, and a leading figure in the Society for Psychical Research.
