There is one, and perhaps only one phase of the great subject of Thought-Transference or Telepathy the manifestations of which can legitimately be included among physical phenomena. Involuntary drawing or scribbling is a phenomenon of very common occurrence. But when such an involuntary drawing turns out to be a more or less exact copy of a drawing which the involuntary draughtsman has never seen; and still further when it turns out that the original drawing has been drawn by another person with the deliberate purpose of impressing it on the mind of the involuntary draughtsman, the subject assumes an entirely new interest. This, however, is the history of those series of "Thought-Transference Drawings" which have been published by the Society for Psychical Research. They are scattered through several volumes of its publications. Through the kindness of the Council of that Society I am able to put before the reader the largest selection of these drawings which has appeared. The drawings are the results of several different groups of experimenters in different parts of the country; and the selection has been made from as many groups as possible. In all cases facsimiles of the original drawing and of the reproduction are given. The earlier series done under the auspices of a Committee of the Society do not represent successes picked out of a large number of failures, but include all the attempts made at the time. The number that can be considered total failures in any of the trials is exceedingly small. Any conceivable chance or coincidence is entirely inadequate to account for the similarity in the great majority of cases. The "First Report on Thought-Reading" was written by Professor W. F. Barrett, Mr. Gurney, and Mr. Myers, and was read at the first General Meeting of the Society on 17th July 1882. In order to illustrate the then state of scientific opinion, the writers say: "The present state of scientific opinion throughout the world is not only hostile to any belief in the possibility of transmitting a single mental concept except through the ordinary channels of sensations, but, generally speaking, it is hostile even to any inquiry upon the matter. Every leading physiologist and psychologist down to the present time has relegated what, for want of a better term, has been called "Thought-Reading" to the limbo of explored fallacies."[64] A second Report by the same writers was read at a meeting of the Society in the same year. In this Report the first series of "Thought-Transference Drawings" was described.