I should like to express my gratitude to all those who have kindly
consented to the publication of their private experiences, and in
particular to my old friends Maurice and Sylvia Barbanell, whose detailed
records, made at the time, have served to stimulate my own memory, and to
recall the experiences of themselves and of others, which I could not
share, since I was in a state of deep trance.
My deep gratitude is also due to Margaret and Percy Illingworth, without
whose untiring devotion this book would never have been written, and to
Hannen Swaffer who has so generously contributed the Foreword.