"Ut si forte manu, quam vis jam corporis, ipse Tute tibi partem ferias, reque experiare."
A remarkable instance of such an illusion was told me by a late nobleman. He had fallen asleep, with some uneasy feelings arising from indigestion. They operated in their usual course of visionary terrors. At length they were all summed up in the apprehension that the phantom of a dead man held the sleeper by the wrist, and endeavoured to drag him out of bed. He awaked in horror, and still felt the cold dead grasp of a corpse's hand on his right wrist. It was a minute before he discovered that his own left hand was in a state of numbness, and with it he had accidentally encircled his right arm.
The taste and the smell, like the touch, convey more direct intelligence than the eye and the ear, and are less likely than those senses to aid in misleading the imagination. We have seen the palate, in the case of the porridge-fed lunatic, enter its protest against the acquiescence of eyes, ears, and touch, in the gay visions which gilded the patient's confinement. The palate, however, is subject to imposition as well as the other senses. The best and most acute _bon vivant_ loses his power of discriminating betwixt different kinds of wine, if he is prevented from assisting his palate by the aid of his eyes,--that is, if the glasses of each are administered indiscriminately while he is blindfolded. Nay, we are authorized to believe that individuals have died in consequence of having supposed themselves to have taken poison, when, in reality, the draught they had swallowed as such was of an innoxious or restorative quality. The delusions of the stomach can seldom bear upon our present subject, and are not otherwise connected with supernatural appearances, than as a good dinner and its accompaniments are essential in fitting out a daring Tam of Shanter, who is fittest to encounter them when the poet's observation is not unlikely to apply--
"Inspiring bauld John Barleycorn, What dangers thou canst make us scorn! Wi' tippenny we fear nae evil, Wi' usquebae we'll face the devil. The swats sae ream'd in Tammie's noddle, Fair play, he caredna deils a bodle!"
Neither has the sense of smell, in its ordinary state, much connexion with our present subject. Mr. Aubrey tells us, indeed, of an apparition which disappeared with a curious perfume as well as a most melodious twang; and popular belief ascribes to the presence of infernal spirits a strong relish of the sulphureous element of which they are inhabitants. Such accompaniments, therefore, are usually united with other materials for imposture. If, as a general opinion assures us, which is not positively discountenanced by Dr. Hibbert, by the inhalation of certain gases or poisonous herbs, necromancers can dispose a person to believe he sees phantoms, it is likely that the nostrils are made to inhale such suffumigation as well as the mouth.[4]