Contents: introductory, question stated; definitions, nature and the supernatural; nature is not the system of God, things and powers, how related; problem of existence, as related to the fact of sin; fact of sin; consequences of sin; anticipative consequences; no remedy in development, or self-reformation; supernatural compatible with nature and subject to fixed laws; character of Jesus forbids his possible classification with men; Christ performed miracles; water marks in the Christian doctrine; the world is governed supernaturally, in the interest of Christianity; miracles and spiritual gifts are not discontinued; conclusion stated, uses and results.