its close connexion with social science and its important bearing on the essential doctrines of Positivism. To attempt to explain the life of Humanity without first examining the lower forms of life, would be as serious an error as to study Biology without regard to the social purpose which Biology is intended to serve. Science has now become indispensable to the establishment of moral truth, and at the same time its subordination to the inspirations of the heart is fully recognized; thus it takes its place henceforward among the most essential functions of the priesthood of Humanity. The supremacy of true Feeling will strengthen Reason, and will receive in turn from Reason a systematic sanction. Natural philosophy, besides its evident value in regulating the spontaneous action of Humanity, has a direct tendency to elevate human nature; it draws from the outer world that basis of fixed truth which is so necessary to control our various desires. The study of Humanity therefore, directly or indirectly, is for the future the permanent aim of Science; and Science is now in a true sense consecrated, as the source from which the universal religion receives its principles. It reveals to us not merely the nature and conditions of the Great Being, but also its destiny and the successive phases of its growth. The aim is high and arduous; it requires continuous and combined exertion of all our faculties; but it ennobles the simplest processes of scientific investigation by connecting them permanently with subjects of the deepest interest. The scrupulous exactness and rigorous caution of the Positive method, which when applied to unimportant subjects seem almost puerile, will be valued and insisted on when seen to be necessary for the efficacy of efforts relating to our most essential wants. Rationalism, in the true sense of the word, so far from being incompatible with right feeling, strengthens and develops it, by placing all the facts of the case, in social questions especially, in their true light. [The new religion is even more favourable to Art than to Science]