In aiming at these results, it has not been thought necessary to assume a controversial attitude or to stand on the defensive, either with regard to religion or science, but rather to attempt to arrive at broad and comprehensive views which may exhibit those higher harmonies of the spiritual and the natural which they derive from their common Author, and which reach beyond the petty difficulties arising from narrow or imperfect views of either or both. Such an aim is too high to be fully attained, but in so far as it can be reached we may hope to rescue science from a dry and barren infidelity, and religion from mere fruitless sentiment or enfeebling superstition. Since the publication of "Archaia," the subject of which it treats has passed through several phases, but the author has seen no reason to abandon in the least degree the principles of interpretation on which he then insisted, and he takes a hopeful view as to their ultimate prevalence. It is true that the wide acceptance of hypotheses of "evolution" has led to a more decided antagonism than heretofore between some of the utterances of scientific men and the religious ideas of mankind, and to a contemptuous disregard of revealed religion in the more shallow literature of the time; but, on the other hand, a barrier of scientific fact and induction has been slowly rising to stem this current of crude and rash hypothesis. Of this nature are the great discoveries as to the physical constitution and probable origin of the universe, the doctrine of the correlation and conservation of forces, the new estimates of the age of the earth, the overthrow of the doctrine of spontaneous generation, the high bodily and mental type of the earliest known men, the light which philology has thrown on the unity of language, our growing knowledge of the uniformity of the constructive and other habits of primitive men, and of the condition of man in the earlier historic time, the greater completeness of our conceptions as to the phenomena of life and their relation to organizable matters--all these and many other aspects of the later progress of science must tend to bring it back into greater harmony with revealed religion.