"The sight of the world which was distraught with sorrow and which was eagerly asking for help and knowledge, did certainly affect my mind and cause me to understand that these psychic studies, which I had so long pursued, were of immense practical importance and could no longer be regarded as a mere intellectual hobby or fascinating pursuit of a novel research. It was this realization which, from early in 1916, caused me and my wife to devote ourselves largely to this subject, to lecture upon it in many countries, and to travel to Australia, New Zealand, America and Canada upon missions of instruction."
"As for the charge of credulity which is invariable directed by the unreceptive against anyone who forms a positive opinion upon this subject, I can solemnly aver that in the course of my long career as an investigator, I cannot recall one single case where it was clearly shown that I had been mistaken upon any serious point, or had given a certificate of honesty to a performance which was afterwards clearly proved to be dishonest. A man who is credulous does not take twenty years of reading and experiment before he comes to his fixed conclusions."
"His methods are not mine, he regarded himself as a missionary, a trustee of a great truth which he felt bound to with others, whether they would receive it or whether they would reject and ridicule it, but one cannot but admire the completeness and self-sacrificing character of his life and doctrines. Occasionally, I think, he lacked the wisdom of the serpent, but the goodness of his motives must be manifest to all."
"The passing of Sir Arthur Conan Doyle at 9:15 a.m. on July 7th, 1930 removes the greatest personality spiritualism ever possessed -- or is ever likely to possess. By sheer personal determination he raised the subject of psychic phenomena into the arena of acute controversy -- and kept it there."
"On Monday, July 7, 1930, the world of literature, story telling, happy-home living, and the world of Spiritualism lost a leader. Sir Arthur Conan Doyle has passed over.
"So many will write obituaries of him in general terms that it will be perhaps of value for us to write of him in a more personal way.
"The Margery Group has lost a tireless champion. From the first Sir Arthur's big Celtic heart has appreciated Margery's work and has fought for it whenever challenged."
"July 7, 1930, the day of his going over, the Margery Group held a seance, and, for the first time in over three years, Walter did not come through. A perfectly reasonable (not evidential) explanation was given by Mark, one of Walter's helpers, who manifested himself at this sitting. He said, in effect: 'Walter is busy as one of a reception committee to a great Spirit, newly arrived.'
"And so he has passed for a time, serving in a new sphere, we have no doubt, and immortal in our hearts, we are sure."
The Vital Message, 1919;
Wanderings of a Spiritualist, 1921;
The Coming of the Fairies, 1922;
Our American Adventure, 1923;
Our Second American Adventure, 1923;
Memories and Adventures, 1924;
Spiritualists' Readers, 1924;
The Land of Mist, 1926;
History of Spiritualism, 1926;
The Case for Spirit Photography, 1924;
Pheneas Speaks, 1927;
Our African Winter, 1929;
The Edge of the Unknown, 1930.