text:  After hearing these things shall we start at the notion of mesmeric sensation being conveyed through another medium than that in ordinary action? Even should the sleep-waker perceive the most distant objects (as some are said to have done ) can we from the moment a means of communication is hinted to us be so much amazed? If his perception be more vivid there seems to be an efficient cause in his abjuring the grosser media for such as are more swift and subtle