We frequently hear of, and witness manifestations of, what is called "spirit psychometry," "spirit clairvoyance," and "spirit clairaudience." In the earlier chapters of the present book we have spoken of the psychic principles and laws underlying psychometry, clairvoyance, and clairaudience. We have seen that all of these forms and phases of psychic phenomena are capable of being produced independent of spirit guidance, control, or influence. In fact, most of such manifestations are so produced, even when they are considered to be phases of spirit mediumship. But, outside of these manifestations, there are found cases in which such phenomena are produced by the aid, influence, and assistance, if not indeed the direct power of, the controlling spirits of the medium. Spirit Psychometry and Clairvoyance. In those instances in which the controlling influence of such phenomena is clearly that of disembodied spirits, we find two distinct classes of the same, as follows: (1) cases in which the spirits aided in the establishing of the psychic rapport, and thus rendered more efficient, clear, and strong; (2) cases in which the spirits exerted their own psychometric, clairvoyant or clairaudient power, and then communicated the result through their mediums to the circle. In the first of above classes, the psychic faculties of the medium really perform the work, although greatly aided by the addition of the psychic power of the spirit. In the second of the above classes, the work is performed solely by the psychic powers of the spirits, and the medium acts merely as the line of communication between spirit and the circle. It must be remembered that the spirits who have passed out of the body are possessed of the same order of psychic faculties as are those still in the body, and that, likewise, on both planes there is a great variation of the degree of such powers between different individuals. Spirit Psychic Assistance. From the above, it will be seen that a mediumistic person may practice in psychometry, clairvoyance, and clairaudience, either with or without the assistance of the spirits. In case the spirits are assisting in the direction of performing the psychic work themselves, and then communicating the result to the medium, the medium of course has but to remain passive and receive the communication. In cases, however, in which the spirits assist merely by strengthening the psychic power of the medium by aiding in the production of the rapport conditions, or by lending the psychic power to add to that of the medium, then the medium has but to proceed just as we have pointed out in the earlier portions of this book devoted to the subjects of psychometry, clairvoyance, etc. Writing Mediumship.