Although it is not a topic for this occasion, it would be of some interest to consider what his contemporaries had to say regarding the interplay of ethics and political theory.  On this issue, Green’s work on ethics and his lectures on political obligation would be worth consulting. Moreover, the student of this period in the history of British moral philosophy would also do well to compare the writings of Green, Bradley and Sidgwick.  All three published around the same time: Sidgwick’s Methods in 1874, Bradley’s Ethical Studies in 1876 and Green’s Prolegomena to Ethics posthumously in 1883.  Taken together, these works provide important assessments of the writings of earlier moral theorists, such as Kant and J. S. Mill, as well interesting discussions of moral psychology, central moral concepts, and the role of moral theory.  These are all difficult and complex texts - which makes comparative studies of their views rather daunting.  Fortunately, some studies have recently appeared that offer useful introductions to such a comparative study - especially, Mander’s studies of the British Idealists and Irwin’s chapters on Sidgwick, Green and Bradley in his history of ethics (see the bibliography, below).