London, New York, Toronto and Melbourne: Cassell and Company, Ltd. . Two volumes. 8vo. xiii, [i], 342; vii, [i], 342,  pp. FIRST EDITION. Each volume with half-title, frontispiece and 7 plates. Original blue publisher’s cloth, sunned and lightly worn at spines, with some small tears in cloth at extremities in spine of Volume 2; light scattered foxing. Volume 1 has several articles laid-in, which have caused some browning. “Seven principles” of spiritualism written in an unknown hand to verso of list of illustrations. Item #12146
First edition. “This work has grown from small disconnected chapters into a narrative which covers in a way the whole history of the Spiritualistic movement.” Doyle became interested in spiritualism after the death of his son Kinsley.