WHAT I here make public has, after a long and scrupulous inquiry, seemed to me evidently true and not unuseful to be known- particularly to those who are tainted with Scepticism, or want a demonstration of the existence and immateriality of God, or the natural immortality of the soul. Whether it be so or no I am content the reader should impartially examine; since I do not think myself any farther concerned for the success of what I have written than as it is agreeable to truth.