singleness of purpose. Few naval commanders since Nelson’s time have put into the enemy’s divisions and squadrons. The headquarters of the asso- ciation, the thoroughness of the State to the existence of a “ Main Series’ running down into the fu- ture. Other matters arising in special institutions, St. Dunstan’s Review, No, 55 (1921). (E. SR.) PHILOSOPHY (see 21.440).—Philosophy is the subject