An Essay Towards a Theory of Apparitions is a public-domain classic of psychology by John Ferriar.
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spectral impressions--Apparition of Desfontaines--Ghosts at Portnedown Bridge--Lucian’s story of a Split Ghost--Instance of a Ghost in two places at once._ 117
PREFACE.
When a late ingenious Physician discovered the elastic fluid, which he termed his ‘Gas of Paradise,’ and which he hoped to render a cheap substitute for inebriating liquors, he claimed the honors due to the inventor of a new pleasure.
How far mankind would have benefited, by the introduction of a fresh mode of intoxication, I leave to the reflection of those sages, whose duty it would have become to appreciate its value, as an additional source of revenue to the state. But when I consider the delight with which stories of apparitions are received by persons of all ages, and of the most various kinds of knowledge and ability, I cannot help feeling some degree of complacency, in offering to the makers and readers of such stories, a view of the subject, which may extend their enjoyment far beyond its former limits. It has given me pain to see the most fearful and ghastly commencements of a tale of horror reduced to mere common events, at the winding up of the book. I have looked, also, with much compassion, on the pitiful instruments of sliding pannels, trap-doors, back-stairs, wax-work figures, smugglers, robbers, coiners, and other vulgar machinery, which authors of tender consciences have employed, to avoid the imputation of belief in supernatural occurrences. So hackneyed, so exhausted had all artificial methods of terror become, that one original genius was compelled to convert a mail-coach, with its lighted lamps, into an apparition.
Now I freely offer, to the manufacturers of ghosts, the privilege of raising them, in as great numbers, and in as horrible a guise as they may think fit, without offending against true philosophy, and even without violating probability. The highest flights of imagination may now be indulged, on this subject, although no loop-hole should be left for mortifying explanations, and for those modifications of terror, which completely baulk the reader’s curiosity, and disgust him with a second reading. Another great convenience will be found in my system; apparitions may be evoked, in open day,--at noon, if the case should be urgent, in the midst of a field, on the surface of water, or in the glare of a patent-lamp, quite as easily, as in the ‘darkness of chaos or old night.’ Nay, a person rightly prepared may see ghosts, while seated comfortably by his library-fire, in as much perfection, as amidst broken tombs, nodding ruins, and awe-inspiring ivy. To those unfortunate persons, who feel a real dread of apparitions, I hope to offer considerations which will quiet their fears, and will even convert the horrors of solitude into a source of rational amusement. But I must forbear to display all the utility of this treatise, lest my reader should imagine that I am copying Echard’s mock-panegyric on his own dialogues.
Take courage, then, good reader, and knock at the portal of my enchanted castle, which will be opened to you, not by a grinning demon, but by a very civil person, in a black velvet cap, with whom you may pass an hour not disagreeably.
Observe, however, that the following treatise is applicable, in its principles, to profane history, and to the delusions of individuals only. If any thing contained in the ensuing pages could be construed into the most indirect reference to theological discussions, the manuscript would have been committed, without mercy, to the flames.
What methods may have been employed by Providence, on extraordinary occasions, to communicate with men, I do not presume to investigate; nor could I hope to display them in language equal to the numbers of our sweetest poet, with which I shall conclude these remarks:
And is there care in heaven? and is there love In heavenly spirits to these creatures base, That may compassion of their evils move? There is: else much more wretched were the case Of men than beasts. But O th’ exceeding grace Of highest God! that loves his creatures so, And all his works with mercies doth embrace, That blessed angels he sends to and fro, To serve to wicked man, to serve his wicked foe.
How oft do they their silver bowers leave, To come to succour us, that succour want? How oft do they with golden pinions cleave The flitting skies, like flying pursuivant, Against foul fiends to aid us militant? They for us fight, they watch and duly ward, And their bright squadrons round about us plant, And all for love, and nothing for reward: O why should heavenly God to men have such regard?
Faerie Queene, Cant. viii.
THEORY
APPARITIONS.
OF THE
THEORY OF APPARITIONS.
Reality of spectral impressions--General law of the system, to which they may be referred--Division of the subject--Spectral illusions exemplified.
I shall begin this discussion, by admitting, as an undeniable fact, that the forms of dead, or absent persons have been seen, and their voices have been heard, by witnesses whose testimony is entitled to belief.
It would be an endless task to ransack the pages of antiquity, for instances of this kind. The apparition of the Genius to Brutus, and of the Fury to Dion, cannot be doubted. We may be allowed, however, to enquire, whether the improved state of physiology affords any glimpse of light on this subject, and whether such extraordinary and terrific impressions cannot be explained, from the known laws of the animal œconomy, independent of supernatural causes, in the examples furnished by profane history.
It is well known, that in certain diseases of the brain, such as delirium and insanity, spectral delusions take place, even during the space of many days. But it has not been generally observed, that a partial affection of the brain may exist, which renders the patient liable to such imaginary impressions, either of sight or sound, without disordering his judgment or memory. From this peculiar condition of the sensorium, I conceive that the best supported stories of apparitions may be completely accounted for.
To render this inquiry more perspicuous, I shall consider,
I. The general law of the system, to which the origin of the spectral impressions may be referred:
II. The proof of the existence of morbid impressions of this nature, without any sensible external agency:
III. The application of these principles to the best-authenticated examples of apparitions.
§ I.
It is a well-known law of the human œconomy, that the impressions produced on some of the external senses, especially on the eye, are more durable than the application of the impressing cause. The effect of looking at the sun, in producing the impression of a luminous globe, for some time after the eye has been withdrawn from the object, is familiar to every one.
This subject has been so thoroughly investigated by the late Dr. Darwin, that I need only to refer the reader to his treatise on ocular spectra. In young persons, the effects resulting from this permanence of impression are extremely curious. I remember, that about the age of fourteen, it was a source of great amusement to myself. If I had been viewing any interesting object in the course of the day, such as a romantic ruin, a fine seat, or a review of a body of troops, as soon as evening came on, if I had occasion to go into a dark room, the whole scene was brought before my eyes, with a brilliancy equal to what it had possessed in day-light, and remained visible for several minutes. I have no doubt, that dismal and frightful images have been presented, in the same manner, to young persons, after scenes of domestic affliction, or public horror.
From this renewal of external impressions, also, many of the phænomena of dreams admit an easy explanation. When an object is presented to the mind, during sleep, while the operations of judgment are suspended, the imagination is busily employed in forming a story, to account for the appearance, whether agreeable or distressing. Then the author enjoys the delight of perusing works of infinite wit and elegance, which never had any real existence, and of which, to his utter mortification, he cannot recollect a single line, next morning; and then the Bibliomane purchases illuminated manuscripts, and early editions on vellum, for sums so trifling, that he cannot conceal his joy from the imaginary vender.
Dr. R. Darwin seems to believe, that it is from habit only, and want of attention, that we do not see the remains of former impressions, or the muscæ volitantes, on all objects. Probably, this is an instance, in which the error of external sensation is corrected by experience, like the deceptions of perspective, which are undoubtedly strong in our childhood, and are only detected by repeated observation.
“After having looked,” says Dr. Darwin, “long at the meridian sun, in making some of the preceding experiments, till the disk faded into a pale blue, I frequently observed a bright blue spectrum of the sun in other objects all the next and the succeeding day, which constantly occurred when I attended to it, and frequently when I did not attend to it. When I closed and covered my eyes, this appeared of a dull yellow; and at other times mixed with the colours of other objects on which it was thrown.”
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