In the Law of Psychic Phenomena by author Thomas Jay Hudson, Hudson has attempted to create a classification of verified psychic phenomena, accounts of which is found in the literature current on the subject; and has tentatively formulated a working hypothesis for the systematic study of all classes of psychic phenomena. Hudson has collected a vast array of facts, thus accumulated and verified, and awaiting scientific classification and analysis, which would seem to justify at least a tentative effort to apply to them the processes of induction, to the end that the fundamental law of psychic phenomena may be discovered. This is an important work for those who are interested in the writings of Thomas Jay Hudson and also those with an interest in understanding psychic phenomena.