Bain, in describing the emotions of fear or terror, says, “Terror on the physical side shows both a loss and a transfer of nervous energy. The appearances may be distributed between the effects of relaxation and effects of tension. The relaxation is seen, as regards the muscles, in the dropping of the jaw, in the collapse overtaking all organs not specially excited, in trembling of the lips and other parts, and in the loosening of the sphincters. Next, as regards the organic processes and viscera. The digestion is everywhere weakened; the flow of saliva is checked, the gastric secretion arrested (appetite failing), the bowels deranged; the respiration is enfeebled. The heart and circulation are disturbed; there is either a flushing of the face or a deadly pallor. The skin shows symptoms--the cold sweat, the altered odor of the perspiration, the creeping action that lifts the hair. The kidneys are directly or indirectly affected. The sexual organs feel the depressing influence. The secretion of milk in the mother’s breast is vitiated.” Darwin gives the following description of fear:-- “The frightened man at first stands like a statue, motionless and breathless, or crouches down as if to escape observation. The heart beats quickly and violently, but it is very doubtful if it then works more efficiently than usual so as to send a greater supply of blood to the body; for the skin instantly becomes pale, as during incipient faintness. The paleness of the surface, however, is probably in large part or is exclusively due to the vasomotor center being affected in such a manner as to cause the contraction of the small arteries of the skin. That the skin is much affected under the sense of great fear we see in the marvelous manner in which the perspiration immediately exudes from it. This exudation is all the more remarkable as the surface is then cold, and hence the term, a cold sweat; whereas the sudorofic glands are properly excited into action when the surface is heated. The hairs also on the skin stand erect, and the superficial muscles shiver. In connection with the disturbed action of the heart the breathing is hurried. The salivary glands act imperfectly; the mouth becomes dry and is often opened and shut. I have also noticed that under slight fear there is a slight tendency to yawn. One of the best symptoms is the trembling of all the muscles of the body. From this cause and from the dryness of the mouth, the voice becomes husky or indistinct, or may altogether fail.” If we turn now to the manifestations of psychopathic maladies, we meet with the same fear symptoms:-- (a) The attacks may be muscular, involving symptoms such as trembling, shaking, paresis, paralysis, or rigidity; there may be affection of locomotion or of muscular co-ordination. (b) There may be sensory disturbances,--anesthesia, paresthesia, analgesia, or hyperalgesia as well as affection of muscular sense and kinesthesia.