Part I. Sketches of Certain Opinions, Ancient and Modern, which Have Been
Entertained on the Subject of Apparitions; Part II. The Particular Morbid
Affections with which the Production of Phantasms is Often Connected; Part
III. Proofs that the Objects of Spectral Illusions Are Frequently Suggested
by the Fantastic Imagery of Superstitious Belief; Part IV. An Attempt to
Investigate the Mental Laws which Give Rise to Spectral Illusions; Part V.
Slight Remarks on the Modifications which the Intellectual Faculty often
Undergoes During Intense Excitements of the Mind; Part VI. Summary of the
Comparative Degrees of Faintness, Vividness, or Intensity Subsisting
between Sensations and Ideas, during their Various Excitements and
Depressions; Part VI. Summary of the Comparative Degrees of Faintness,
Vividness, or Intensity Subsisting between Sensations and Ideas, during
their Various Excitements and Depressions.
