At the end of nearly three centuries we find ourselves relieved of a heavy burden of fear and care about the perpetual and unbounded malice of Satan and his agents. Witchcraft has ceased to be one of the gravest curses of the human lot. We have parted with one after another of the fetish or conjectural persuasions about our relations with the world of spirit or mind, regarded as in direct opposition to the world of matter. By a succession of discoveries we have been led to an essentially different view of life and thought from any dreamed of before the new birth of science; and at this day, and in our own metropolis, we have Sir Henry Holland telling us how certain treatment of this or that department of the nervous system will generate this or that state of belief and experience, as well as sensation. We have Dr. Carpenter disclosing facts of incalculable significance about brain-action without consciousness, and other vital mysteries. We have Dr. Maudsley showing, in the cells of the lunatic asylum, not only the very realm of Satan, as our fathers would have thought, but the discovery that it is not Satan, after all, that makes the havoc, but our own ignorance which has seduced us into a blasphemous superstition, instead of inciting us to the study of ourselves. And these are not all our teachers. Amid the conflict of phenomena of the human mind and body, we have arrived now at the express controversy of Psychology against Physiology. Beyond the mere statement of the fact we have scarcely advanced a step. The first can not be, with any accuracy, called a science at all, and the other is in little more than a rudimentary state; but it is no small gain to have arrived at some conception of the nature of the problem set before us, and at some liberty of hypothesis as to its conditions. In brief, and in the plainest terms, while there is still a multitude deluding and disporting itself with a false hypothesis about certain mysteries of the human mind, and claiming to have explained the marvels of Spiritualism by making an objective world of their own subjective experience, the scientific physiologists [those especially who are true phrenologists] are proceeding, by observation and experiment, to penetrate more and more secrets of our intellectual and moral life. THE PLANCHETTE MYSTERY. WHAT PLANCHETTE IS AND DOES.