Dr. John Dewey, one of the world’s greatest philosophers, here gives the unprofessional philosopher a succinct notion of the development of classic German philosophy from Kant to Hegel. All technical details are omitted. Professor Dewey gives some interesting side-lights on German war philosophy, and shows how German thought took shape in the struggle for German nationality against the Napoleonic menace, and how profoundly that crisis affected the philosophy of morals, of the state, and of history which has since that time penetrated into the common consciousness of Germany. Doctor Dewey thinks that cavalry generals who employ philosophy to bring home practical lessons are mighty rare outside of Germany. More significant than the words themselves are their occasion and the occupation of the one who utters them. Outside of Germany it would be indeed hard to find an audience where an appeal for military preparedness would be reinforced by allusions to the Critique of Pure Reason. By taking the statements as given by the German philosophers one can understand the temper in which opinion in Germany meets a national crisis. When the philosopher Eucken, who received the Nobel prize for contributing to the idealistic literature of the world, justifies the part taken by Germany in a world war because the Germans alone do not represent a particularistic and nationalistic spirit, but embody the “universalism” of humanity itself, he utters a conviction bred in German thought by the ruling interpretation of German philosophic idealism. By the side of this motif the glorification of war as a biologic necessity, forced by increase of population, is a secondary detail giving a totally false impression when isolated from its context. Philosophical justification of war follows inevitably from a philosophy of history composed in nationalistic terms. The author says that history is the movement, the march of God on earth through time. Only one nation at a time can be last and hence the fullest realization of God. =The War and America.= By HUGO MÜNSTERBERG. D. Appleton & Co., New York and London. 1915. $1.00 net, pp. 210. =The Peace and America.= By PROF. HUGO MÜNSTERBERG. D. Appleton & Co., New York and London. 1915. Price $1.00 net, pp. 280. These two illuminating books written by Professor Münsterberg of Harvard University, give a wealth of information regarding the causes of the Great War. He is known as perhaps the greatest psychologist in America to-day. He is, however, well qualified to write on this great subject on account of his intense interest in the outcome of the conflict, and also on account of his great desire for peace between nations.