The Spontaneous Procession of Dream Imagery—Its Kaleidoscopic Character—Attention in Dreams—Relation of Drug Visions and Hypnagogic Imagery to Dreaming—Colour in Dreams—The Fusion of Dream Imagery—Compared to Dissolving Views—Sources of the Imagery—Various types of Fusion—The Sub-Conscious Element in Dreaming—Verbal Transformations as Links in Dream Imagery—The Reduplication of Visual Imagery in Motor and other Terms, 20