therefore have great attractions for persons of weak intellect. Between the process of thought and movement there exists an exact parallelism explicable by the fact that the elaboration of presentations is nothing else than a modification of the elaboration of the motor impulses. The phenomena of movement make the mechanism of thought more easily apprehensible to the lay mind. The automatic association of muscular contractions corresponds to the association of ideas, their co-ordination to attention. As with defective attention there ensues no intelligent thought, so with faulty co-ordination there can be no appropriate movement. Palsy is equivalent to idiocy, St. Vitus’s dance to obsessions and fixed ideas. The attempts at witticisms of the weak-minded are like beating the air with a sword; the notions and judgments of sound brains are like the careful thrust and parry of skilful fencing. Mysticism finds its reflected image in the aimless and powerless, often hardly discernible, movements of senile and paralytic trembling; and ecstasy is, for a brain-centre, the same state as a prolonged and violent tonic contraction for a muscle or group of muscles. CHAPTER II. THE PRE-RAPHAELITES. MYSTICISM is the habitual condition of the human race, and in no way an eccentric disposition of mind. A strong brain which works out every presentation to its full clearness--a powerful will, which sustains the toiling attention--these are rare gifts. Musing and dreaming, the free ranging of imagination, disporting itself at its own sweet will along the meandering pathways of association, demand less exertion, and will therefore be widely preferred to the hard labour of observation and intelligent judgment. Hence the consciousness of men is filled with a vast mass of ambiguous, shadowy ideas; they see, as a rule, in unmistakable clearness only those phenomena which are daily repeated in their most intimate personal experience, and, among these, those only which are the objects of their immediate needs.