best they can do. I desire you to understand distinctly what will be the basis of my lectures, what will be the points I shall attempt to establish. I shall endeavor to prove Spiritualism. I shall not come to the raps for a considerable time. They are so far off, I shall not attempt to prove Spiritualism by rapping for some time yet. People say we have got beyond the rapping. The truth is, a large portion of the world have not yet got to the raps. They are not yet able to appreciate the raps. We must make considerable progress before we can get the philosophy of the raps. We have much to learn yet before we can get the full benefit of a simple sound, even though it be not accompanied by much intelligence. The first lesson I shall attempt to teach—pardon me for assuming to be a teacher, I will be a pupil at any time—is how to study and know yourselves; how to ascertain the laws of your being, action, and manifestation; how to determine what is and what is not spiritual in you; how to determine whether you are under Spirit-influence or not—for there are laws by which all these things can be determined. In my investigation I shall perhaps be able to determine where that terrible creature, Jack, the Giant-killer, the Odylic force, resides, and show what it can and what it can not do. And I promise, too, in the face and eyes of all theorizers who believe that the Spiritual manifestations are traceable to this force, and to the satisfaction of everybody else, to demonstrate that it is not competent to produce them. I will demonstrate it according to President Mahan's hypothesis. I will show by every known law of nature that the power exerted at the brain's
