of a religious belief is the outcome of another, that in all times religion has included within its limits a system of philosophy, expressing its more or less transcendental conceptions in doctrines which form in any age their fittest representatives, but which doctrines are liable to modification in the general course of intellectual change, whether the ancient formulas still hold their authority with altered meaning, or are themselves reformed or replaced. Christendom furnishes evidence to establish this principle, if for example we will but candidly compare the educated opinion of Rome in the 5th with that of London in the 19th century, on such subjects as the nature and functions of soul, spirit, deity, and judge by the comparison in what important respects the philosophy of religion has come to differ even among men who represent in different ages the same great principles of faith. The general study of the ethnography of religion, through all its immensity of range, seems to countenance the theory of evolution in its highest and widest sense. In the treatment of some of its topics here, I have propounded special hypotheses as to the order in which various stages of doctrine and rite have succeeded one another in the history of religion. Yet how far these particular theories may hold good, seems even to myself a minor matter. The essential part of the ethnographic method in theology lies in admitting as relevant the compared evidence of religion in all stages of culture. The action of such evidence on theology proper is in this wise, that a vast proportion of doctrines and rites known among mankind are not to be judged as direct products of the particular religious systems which give them sanction, for they are in fact more or less modified results adopted from previous systems. The theologian, as he comes to deal with each element of belief and worship, ought to ascertain its place in the general scheme of religion. Should the doctrine or rite in question appear to have been transmitted from an earlier to a later stage of religious thought, then it should be tested, like any other point of culture, as to its place in development.
