ber, and finally describe. Scientific experiments have been made again and again showing that men under strain have thought a door was shut when it was open, or open when it was shut. Men have differed about the number of doors or windows in a wall just in front of them. They have suffered optical illusions in broad daylight. They have done this even without the hypnotic effect of personality; but here we have a very powerful and persuasive personality bent upon fixing only one picture on your minds; the picture of the wild Irish rebel shaking his pistol at the sky and firing that vain volley, whose echoes were the thunders of heaven."
"Professor," cried Fenner, "I'd swear on my deathbed that door never opened."
"Recent experiments," went on the professor, quietly, "have suggested that our consciousness is not continuous, but is a succession of very rapid impressions like a cinema; it is possible that somebody or something may, so to speak, slip in or out between the scenes. It acts only in the instant while the curtain is down. Probably the patter of conjurors and all forms of sleight of hand depend on what we may call these black flashes of blindness between the flashes of sight. Now this priest and preacher of transcendental notions had filled you with a transcendental imagery; the image of the Celt like a Titan shaking the tower with his curse. Probably he accompanied it with some slight but
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