Catherine Crowe 
Night Side of Nature, or Ghosts and Ghost Seers [PDF ebook] 

Whilst the greatest effort has been made to ensure the quality of this text, due to the historical nature of this content, in some rare cases there may be minor issues with legibility. The power, be it what it may, whether of dressing up an ethereal visible form, or of acting on the constructive imagination of the seer, which would enable a spirit to appear in his habit as he lived, would also enable him to present any other object to the eye of the seer, or himself in any shape, or fulfilling any function he willed; and we thus find in various instances, especially those recorded in the Seeress of Prevorst, that this is the case.