On the 23d of September, 1763, the Abbé Prevost, the French novelist and compiler of travels, was seized with a fit in the forest of Chantilly. The body was found, and conveyed to the residence of the nearest clergyman. It was supposed that death had taken place through apoplexy. But the local authorities, desiring to be satisfied of the fact, ordered the body to be examined. During the process, the poor abbé uttered a cry of agony.—It was too late. It is to be observed that cases of sudden and unexplained death are, on the one hand, the cases most likely to furnish a large percentage of death-trance; and, on the other, are just those in which the anxiety of friends or the over-zealousness of a coroner is liable to lead to premature anatomization. Nor does it even follow that, because the body happily did not wake while being dissected, the spark of life was therefore extinct. This view, however, is too painful to be followed out in reference to the past. But it imperatively suggests the necessity of forbidding necroscopic examinations, before there is perfect evidence that life has departed—that is, of extending to this practice the rule which ought to be made absolute in reference to interment. Thus comes out the practical importance of the question, how is it to be known that the body is no longer alive? The entire absence of the ordinary signs of life is insufficient to prove the absence of life. The body may be externally cold; the pulse not be felt; breathing may have ceased; no bodily motion may occur; the limbs may be stiff (through spasm); the sphincter muscles relaxed; no blood may flow from an opened vein; the eyes may have become glassy; there may be partial _mortification_ to offend the sense with the smell of death; and yet the body may be alive. The only security we at _present_ know of, that life has left the body, is the supervention of chemical decomposition, shown in commencing change of colour of the integuments of the abdomen and throat to blue and green, and an attendant cadaverous fetor. To return from this important digression to the former subject of the Vampyr superstition. The second element which we have yet to explain is the Vampyr visit and its consequence—the lapse of the party visited into death-trance. There are two ways of dealing with this knot; one is to cut it, the other to untie it.