Natural and Induced Clairvoyance

In the following pages I have endeavoured to indicate the nature of the faculty of Second Sight or Clairvoyance, the means of its development, the use of suitable media or agents for this purpose, and the kind of results that may be expected to follow a regulated effort in this direction. I have also sought to show that the development of the psychic faculties may form an orderly step in the proce...