Sketches of the Philosophy of Apparitions: Or, An Attempt to Trace Such Illusions to Their Physical Causes |
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3d Stage actual impressions afterwards angels apparitions appeared arise astral spirits blood body brain catalepsy CHAP connected considered degree of intensity degree of vividness delirium tremens demonology demons devil divels dreams duergar ecstasy effect entertained eyes faint Fancy figures ghosts hierarchy of angels human illustration imagination impart induced kind less vivid ment mental excitement mental feelings metaphysicians mind morbific causes narrative nature nerves nervous ness Nicolai night nitrous oxide notion objects observe occasion opinion organs of sense past feelings perfect sleep person phantasms phenomena philosophers pleasurable feelings pneumatology present principle Rabbi Akkiva recollected images Reginald Scot remarks rendered renovated feelings retina sanguineous says sensations and ideas shew shewn sions sleep somnambulism Soul spectral illusions spectral impressions spectres spirits stage of excitement subsist superstition supposed symptoms tasms thing thou thought tion unconsciousness various vision vivifying influence waking writer