ELIGIOUS naturalism is today one of the outstanding American philosophies of religion, so that it may be interesting and important to subject it to a careful scrutiny. As with other philosophies of religion, its fundamental concept is that of God, so that we may well concentrate our attention upon that concept and attempt to determine just what is denoted by the God of religious naturalism, at the same time seeking to discover what religious values this concept ought consistently to develop in the lives of its adherents. We shall not be concerned with Professor H. N. Wieman's discussions on the cultiva-