There are two great schools of thought in the world-materialistic and spiritualistic. With one, MATTER is all in all, the ultimate substratum; mind is merely the result of organized matter; everything is translated into terms of force, motion and the like. With the other, SPIRIT or mind is the ultimate substance-God; matter is the visible expression of this invisible and eternal Consciousness. Materialism is a barren, dreary, comfortless belief, and, in the opinion of the author, is without philosophical foundation. This is an age of scientific materialism, although of late years that materialism has been rather on the wane among thinking men. In an age of such ultra materialism, therefore, it is t strange that there should come a great reaction on the part of spiritually minded people. This reaction takes the form of an increased vitality of dogmatic religion, or else culminates in the formation of Spiritualistic or Theosophic societies for the prosecution of occult phemena. Spiritualists are w numbered by the million. Persons calling themselves mediums present certain phemena, physical and psychical, and call public attention to them, as an evidence of life beyond the grave, and the possibility of spiritual communication between this world and the next.