"The following pages aim at presenting in brief compass a selection of the evidence upon which the hypothesis of thought-transference, or telepathy, is based. It is now more than twelve years since the Society for Psychical Research was founded, and nearly eight since the publication of Phantasms of the Living. Both in the periodical Proceedings of the Society and in the pages of Edmund Gurney's book, a large mass of evidence has been laid before the public. But the papers included in the Proceedings are interspersed with other matter, some of it too technical for the taste of the general reader; whilst the two volumes of Phantasms of the Living, which have for some time been out of print, were too costly for the purse of some, and too bulky for the patience of others.