The author of this book in his preface states: “The chief aim of the work has been to prove to some who still hesitate to accept them the reality of telepathy and clairvoyance by a series of new researches,” and later, that the purpose of the book is “to interpret occultism in a purely scientific and nonmystical manner.” He thence, with the zeal and fervor of an early Christian martyr, proceeds to defend the much abused cause of occultism against the castigations of prejudiced modern psychologists by citing the fact that Hegel, Fichte, Schopenhauer, William James, and others, accepted telepathy and clairvoyance as facts, just as does the estimable William McDougall to—day. One could hardly accuse the author of being indifferent as to the outcome of experiments which purport to bare the worth or unworth of researches along this line. Though Tischner's bias does not necessarily obviate the possibility of his carrying on a genuine scientific procedure, it does unfortunately cause one to attach less importance to his claims.