by habit, is capable of being further illustrated from the sight. A person who has been accustomed to drawing. retains a much more perfect notion of a building, landscape, or other visible object, than one who has not. A portrait painter, or any person who has been in the practice of drawing such sketches, can trace the outlines of the human form with very great ease; it requires hardly ⚫ more effort from them than to write their names.-This point may also be illustrated by the difference which we sometimes notice in people in their conceptions of colours. Some are fully sensible of the difference between two colours when they are presented to them, but cannot with confidence give names to these colours when they see them apart, and may even confound the one with the other. Their original sensations and perceptions are supposed to be equally distinct with those of other persons; but their subsequent conception of the colours is far from being so. This defect arises partly at least from want of practice; that is to say, from the not having formed a habit. The persons who exhibit this weakness of conception have not been compelled by their situation, nor by mere inclination, to distinguish and to name colours so much as is common. 118. Of the subserviency of our conceptions to description. It is highly favourable to the talent for lively description when a person's conceptions are readily suggested and are distinct. Even such a one's common conversation differs from that of those whose conceptions arise more slowly and are more faint. One man, whether in conversation or in written description, seems to place the object which he wishes to describe directly before us; it is represented distinctly and to the life. Another, although not wanting in a command of language, is confused and embarrassed amid a multitude of particulars, which, in consequence of the feebleness of his conceptions, he finds himself but half acquainted with; and he therefore gives us but a very imperfect and confused notion of the thing which he desires to make known. It has been by some supposed that a person might give a happier description of an edifice, of a landscape, or oth er object, from the conception than from the actual perception of it. The perfection of a description does not always consist in a minute specification of circumstances; in general, the description is better when there is a judicious selection of them. The best rule for making the selection is to attend to the particulars that make the deepest impression on our own minds, or, what is the same thing, that most readily and distinctly take a place in our conceptions.-When the object is actually before us, it is extremely difficult to compare the impressions which different circumstances produce. When we afterward conceive of the object, we possess merely the outline of it; but it is an outline made up of the most striking circumstances. Those circumstances, it is true, will not impress all persons alike, but will somewhat vary with the degree of their taste. But when, with a correct and delicate taste, any one combines lively conceptions, and gives a description from those conceptions, he can hardly fail to succeed in it. And, accordingly, we find here one great element of poetic power. It is the ability of forming vivid conceptions, which bodies forth "The forms of things unknown; the poet's pen 119. Of conceptions attended with a momentary belief. Our conceptions are sometimes attended with belief; when they are very lively, we are apt to ascribe to them a real outward existence, or believe in them. We do not undertake to assert that the belief is permanent; but a number of facts strongly lead to the conclusion that it has a momentary existence. (1.) A painter, in drawing the features and bodily form of an absent friend, may have so strong a conception, so vivid a mental picture, as to believe for a moment that his friend is before him. After carefully recalling his thoughts at such times, and reflecting upon them, almost every painter is ready to say that he has experienced some illusions of this kind. "We read," says Dr. Conolly," that when Sir Joshua Reynolds, after being many hours occupied in painting, walked out into the street, the lamp-posts seemed to him to be trees, and the men and women moving shrubs." It is true, the illusion is, in these cases, very short, because the intensity of conception, which is the foundation of it, can never be kept up long when the mind is in a sound state. Such intense conceptions are unnatural. And, further, all the surrounding objects of perception, which no one can altogether disregard for any length of time, tend to check the illusion and terminate it. (2.) When a blow is aimed at any one, although in sport, and he fully knows it to be so, he forms so vivid a conception of what might possibly be the effect, that his belief is for a moment controlled, and he unavoidably shrinks back from it. This is particularly the case if the blow approaches the eye. Who can help winking at such times? It is a proof of our belief being controlled under such circumstances, that we can move our own hands rapidly in the neighbourhood of the eye, either perpendicularly or horizontally, and, at the same time, easily keep our eyelids from motion. But when the motion is made by another, the conception becomes more vivid, and a belief of danger inevitably arises.-Again, place a person on the battlements of a high tower; his reason tells him he is in no danger; he knows he is in none. But, after all, he is unable to look down from the battlements without fear; his conceptions are so exceedingly vivid as to induce a momentary belief of danger, in opposition to all his reasonings. (3.) When we are in pain from having struck our foot against a stone, or when pain is suddenly caused in us by any other inanimate object, we are apt to vent a momentary rage upon it. That is to say, our belief is so affected for an instant, that we ascribe to it an accountable existence, and would punish it accordingly. This is observed particularly in children and in savages. It is on the principle of our vivid conceptions being attended with belief that poets so often ascribe life, and agency, and intention to the rains and winds, to storms, and thunder, and lightning. How natural are the expressions of King Lear, overwhelmed with the ingratitude of his daughters, and standing with his old head bared to the pelting tempest ! "Nor rain, wind, thunder, fire are my daughters; I never gave you kingdoms, called you children." (4.) There are persons who are entirely convinced of the folly of the popular belief of ghosts and other nightly apparitions, but who cannot be persuaded to sleep in a room alone, nor go alone into a room in the dark. Whenever they happen out at night, they are constantly looking on every side; their quickened perceptions behold images which never had any existence except in their own minds, and they are the subjects of continual disquiet and even terror.-"It was my misfortune," says Dr. Priestly, "to have the idea of darkness and the ideas of invisible, malignant spirits and apparitions very closely connected in my infancy, and to this day, notwithstanding I believe nothing of those invisible powers, and consequently of their connexion with darkness, or anything else, I cannot be perfectly easy in every kind of situation in the dark, though I am sensible I gain ground upon this prejudice continually." In all such cases we see the influence of the prejudices of the nursery. Persons who are thus afflicted were taught in early childhood to form conceptions of ghosts, visible hobgoblins, and unearthly spirits, and the habit still continues. It is true, when they listen to their reasonings and philosophy, they may well say they do not believe in such things. But the effect of their philosophy is merely to check their belief; not in ten cases in a thousand is the belief entirely overcome. Every little while, in all solitary places, and especially in the dark, it returns, and, when banished, returns again; otherwise we cannot give an explanation of the conduct of these persons. § 120. Conceptions which are joined with perceptions. The belief in our mere conceptions is the more evident and striking whenever they are at any time joined with our perceptions. A person, for instance, is walking in a field in a foggy morning, and perceives something, no matter what it is; but he believes it to be a man, and does not doubt it. In other words, he truly perceives some object, and, in addition to that perception, has a mental conception of a man attended with belief. When he has advanced a few feet further, all at once he perceives that what he conceived to be a man is merely a stump with a few stones piled on its top. He perceived at first as plainly, or but little short of it, that it was a stump, as in a moment afterward; there were the whole time very nearly the same visible form and the same dimensions in his eye. But he had the conception of a man in his mind at the same moment, which overruled and annulled the natural effects of the visual perception; the conception being associated with a present visible object, acquired peculiar strength and permanency, so much so that he truly and firmly believed that a human being was before him. But the conception has departed, the present object of perception has taken its place, and it is now impossible for him to conjure up the phantom, the reality of which he but just now had no doubt of. In his Voyage of Discovery to the Arctic Regions, Captain Ross mentions an incident illustrative of the power and fruitfulness of our conceptions, when upheld by the actual presence of objects. It will be recollected that the immense masses of ice which are found floating in the Polar Seas often display a variety of the most brilliant hues. Speaking of one of these icebergs, as they are called, which he early fell in with, and which was about forty feet high and a thousand feet long, "imagination," he says, "painted it in many grotesque figures; at one time it looked something like a white lion and horse rampant, which the quick fancy of sailors, in their harmless fondness for omens, naturally enough shaped into the lion and unicorn of the king's arms, and they were delighted accordingly with the good luck it seemed to augur. One of the numerous characters whom Sir Walter Scott has sketched with so much truth to nature, speaks of himself as being banished on a certain occasion to one of the sandy keys of the West Indies, which was reputed to be inhabited by malignant demons. This person, after acknowledging he had his secret apprehensions upon their account, remarks, "in open daylight or in ab |