Let it not be inferred from the emphasis placed upon this contrast that Psychical Research is in itself to be condemned or to be regarded as useless. Not at all; only in many aspects it is not psychological, and the psychologist is under no obligation to find an interest in, nor to occupy himself with, this aspect of things, if his general trend does not happen to point that way. The physicist may be called upon with equal propriety to aid in many inquiries which the Society for Psychical Research has undertaken. Among the early records of the Society appears an account of a man who presented himself with an iron ring on his arm, far too small to have been slipped over his hand, and who seemed to imply that possibly the spirits put it there, or that it came on through some supernatural agency. This was regarded as a proper case for the Society for Psychical Research to examine. If it could have been demonstrated that the ring reached its position through the exercise of the will of some living persons or spirits, the phenomenon, I suppose, would in some sense be psychological; if it were demonstrated that it came transported through the fourth dimension of space, it might be termed physical. But in reality it was probably physiological, for there was evidence that it was by the effects of etherization that the hand was contracted and that the ring was forced over it. Surely it is most absurd to designate such an inquiry, however interesting and proper it may be regarded, Psychical Research. It certainly is a highly commendable function for a society to take upon itself the investigation of such claims as theosophy or spiritualism put forward, whenever movements of this type are likely to develop into psychic epidemics or to prove a social menace. Any authoritative body that will exhibit the absurdity of such claims, and expose the true _modus operandi_ of the manifestations, will perform an important civic function. Such a function was performed by the Royal Commission of 1784, in exposing the vain pretensions and the insidious dangers of animal magnetism; Mr. Hodgson's investigations of theosophy, the Seybert Commission's report on spiritualism, are both able and useful contributions of the same type; and, at present, an authoritative statement regarding the theoretical absurdity and the practical dangers of Christian Science might prove efficacious. Such special investigations represent the practical application of science to concrete conditions and problems; they are woefully misnamed, and their significance is likely to be misinterpreted, when they are presented as Psychical Research, and are grouped along with other problems of a totally different nature.