It is to be observed, however, that many and many who can be thrown into trance will not progress so far as to the present step. Others make a tantalising half advance towards reaching it _thus_; and then stop. They are asked, "Do you see any thing?" After some days at length, they answer, "Yes"--"What?" "A light." "Where is the light?" Then they intimate its place to be either before them, or at the crown of the head, or behind one ear, or quite behind the head. And they describe the colour of the light, which is commonly yellow. And each day it occupies the same direction, and is seen equally when the room is light or dark. Their eyes in the mean time are closed. And here, with many, the phenomenon stops. But, with others, it goes thus strangely farther. In this light they begin to discern objects, or they see whatever is presented to them in the direction in which the light lies, whether before the forehead or at the crown of the head, or wherever it may be. Sometimes the range of this new sense is very limited, and the object to be seen must be held near to the new organ. Sometimes it must touch it; generally, however, the sense commands what the eye would, if it were placed there. One tries first to escape the improbability of an extempore organ of sense being thus established, by supposing that the mind of the entranced person has only penetrated a little deeper than before into yours, and perceives what you see. But I had the following experiment made, which excludes this solution of the phenomenon. The party standing behind the entranced person, whose use it was to see with the back of her head, held behind him a pack of cards, and then, drawing one of them, presented it, without seeing it himself, to her new organ of vision. She named the card justly each time the experiment was repeated. The degree of light suiting this new vision varies in different cases: sometimes bright daylight is best; generally they prefer a moderate light. Some distinguish objects and colours in a light so obscure that the standers-by cannot distinguish the same with their eyes. The above phenomena have been, over and over again, verified by the gentleman whom I before referred to, Mr J. W. Williamson of Whickham; and not only have I received the accounts of them from himself, but from two other gentlemen, who repeatedly witnessed their manifestation in patients at Mr Williamson's residence. A parallel transposition of the sense of hearing I will exemplify from the details of a case of catalepsy, or spontaneous trance, as they are given by the observer, Dr Petetin, an eminent civil and military physician of Lyons, where he was president of the Medical Society. The work in which they are given is entitled, "Memoire sur la Catalepsie. 1787."