PREFACE.

A large part of the material used in this book was sent to the authors as representatives of the Society for Psychical Research; and the book is published with the sanction of the Council of that Society.

The division of authorship has been as follows:—As regards the writing and the views expressed, Mr. Myers is solely responsible for the Introduction and for the “Note on a Suggested Mode of Psychical Interaction,” which immediately precedes the Supplement. Mr. Gurney is solely responsible for the remainder of the book. However, the most difficult and important part of the undertaking—the collection, examination, and appraisal of evidence—has been a joint labor throughout. Mr. Podmore has borne so large a share of this that his name could not possibly have been omitted from the title page.

In the free discussion and criticism that has accompanied the progress of the work, we have enjoyed the constant advice and assistance of Professor and Mrs. Sidgwick, to each of whom we owe more than can be expressed by any conventional phrases of obligation. Whatever errors of judgment or flaws in argument may remain, such blemishes are certainly fewer than they would have been without this watchful and ever-ready help. Professor and Mrs. Sidgwick have also devoted some time and trouble, during vacation—