Double Identity, are well-known forms of insanity. In a mild degree they consist with sanity. Landseer could paint different heads simultaneously with both hands. Hypnotism, on this theory, would be the lulling of the patient's Consciousness, the closing of his central I, and the setting of his Sub-Consciousness to work in accordance with suggestions. Thought-transference seems a superfluous hypothesis here. Death is the cessation of both Consciousness and Sub-Consciousness; and when a drowned man is resuscitated his Sub-Consciousness can never have ceased. Do you fail to understand Sub-Consciousness? So do I--as much as that our digestion operates and our blood circulates without asking our permission. It is not unreasonable to suppose that Sub-Consciousness is simply the psychical side of the molecular changes that are going on in our nervous system. There is more than "metaphysical conceit" in that elegy of Donne's: Her pure and eloquent blood Spoke in her cheeks, and so distinctly wrought That one might almost say her body thought. Sub-Consciousness is a greater marvel in itself than any that it explains, and beats the spooks hollower than they are. Just consider the phenomena of dreams, what things we do, what sights we see. It is only the commonness of dreams that blinds us to the fact that they are more marvellous than ghost-stories. Mr. Lang thinks the theory of the sub-conscious self that uses our muscles for its own ends is "the most startling thing ever offered to the public; and that it should be regarded as true by a sceptic is staggering to our judicial faculties." But why? Our noble selves--are they not already exposed to the indignity of dreams? What matters another insult? We need not be greatly put out if Sub-Consciousness is busy in the day-time too. And what about Somnambulism? What about musical or literary creation? Are not our ideas made for us in the kitchen of our Sub-Consciousness? Our Consciousness is only a small part of ourselves. What produced De Quincey's opium dreams was certainly not Consciousness. I can see visions, myself, without opium. In certain excited states of the brain I can travel in my chair, or bed, perfectly awake, through an endless and variegated series of scenes--domestic interiors with people talking or eating or playing cards, battle-fields with glittering phalanxes, beautiful tossing seas, gorgeous forests, melancholy hospitals, busy newspaper offices, etc., etc. These are almost entirely detached from my will, and the chief interest of the spectacle is the unexpectedness of its episodes. The scenes and the people have all the concreteness and detail of actuality, although I never forget that I am observing my own hallucinations. Just fancy what ghosts I could see in the dark if I lost my central control and let my Sub-Consciousness get the upper hand! Sociologists say, the seeing of dead people in dreams gave rise to the idea of ghosts. I would