_25_ October, 1929. At my wife’s insistence, I have held up this book for six months, in order to think it over, and have the manuscript read by friends whose opinions we value. A score or more have read it, and made various suggestions, many of which I have accepted. Some of the reactions of these friends may be of interest to the reader. The news that I was taking up “psychic” matters brought me letters both of curiosity and protest. My friend Isaac Goldberg of Boston reported the matter in the Haldeman-Julius publications under the title: “Sinclair Goes Spooky.” I hope that when he has read this book, he will find another adjective. My friends, both radical and respectable, must realize that I have dealt here with facts, in as patient and thorough a manner as I have ever done in my life. It is foolish to be convinced without evidence, but it is equally foolish to refuse to be convinced by real evidence. There came to me a letter of warning from a good comrade, T. H. Bell of Los Angeles, an elderly Scotchman who has grown up in the Socialist movement, and known the old fighters of the days when I was a child. He begged me not to jeopardize my reputation; so I thought he would be a good test for the manuscript, and asked him to read it. Some of his suggestions I accepted, and the work is the better for them. But Comrade Bell was not able to believe that Craig’s drawings could have come by telepathy, for the reason that it would mean that he was “abandoning the fundamental notions” on which his “whole life has been based.” Comrade Bell brought many arguments against my thesis, and this was a service, because it enables me to answer my critics in advance. First, what is the value of my memory? Can I be sure that it does not “accommodate itself too easily to the statement Sinclair wishes to believe?” My answer is that few of the important cases in the book rest upon my memory; they rest upon records written down at once. They rest upon drawings which were made according to a plan devised in advance, and then duly filed in envelopes numbered and dated. Also, my memory has been checked by my wife’s, who is a fanatic for accuracy, and has caused me torment, through a good part of our married life, by insisting upon going over my manuscripts and censoring every phrase. Also Bob and Dollie and my secretary have read this narrative, and checked the statements dealing with them.