Henry Nelson Wieman and Reinhold Niebuhr were theologically poles apart—Wieman a “new naturalist” and Niebuhr a “new super naturalist”—according to Wieman's nomenclature. Wieman devoted more time and attention to Niebuhr than Niebuhr did to him. The reason for this was the result of Wieman's sustained attack on the “new supernaturalism” with which he identified Niebuhr as one of the major American representatives. This article traces the background to Wieman's view of Niebuhr—Wieman's own views on science, on religion, and on Christianity—then (...) proceeds to Wieman's analysis of Niebuhr's theology and his relation to the “new supernaturalism,” concluding with Niebuhr's reply to Wieman. (shrink)