In their book Sargent and Eysenck argued that the experiments of William Crookes with the medium Daniel Dunglas Home were evidence for supernatural powers. Sargent wrote a negative review for Ruth Brandon's "The Spiritualists", a book which claimed Home and other spiritualist mediums were fraudulent. R. W. Morrell commenting in the "New Scientist" on the review wrote "Carl Sargent would have us believe that D. D. Home was not caught out as a fraud. Sadly for Dr Sargent, though, he was", Morrell concluded that Sargent had displayed a personal gullibility.