our nature, a wonderful uniformity is preserved in the emotions and feelings of the different races of men; the same object making upon every person the same impression, the same in kind, if not in degree. There have been, as above observed, aberrations from these principles; but soon or late they prevail, and restore the wanderer to the right track.

I know but of one other means for ascertaining the common sense of mankind; which I mention, not in despair, but in great confidence of success. As the taste of every individual ought to be governed by the principles above mentioned, an appeal to these principles must necessarily be decisive of every controversy that can arise upon matters of taste. In general, every doubt with relation to the common sense of man, or standard of taste, may be cleared by the same appeal; and to unfold these principles is the declared purpose of the present undertaking.

APPENDIX.

TERMS DEFINED OR EXPLAINED.

1. EVERY thing we perceive or are conscious of whether a being or a quality, a passion or an action, is with respect to the percipient termed an object. Some objects appear to be internal, or within the mind; passion, for example, thinking, volition: Some external; such as every object of sight, of hearing, of smell, of touch, of taste.

2. That act of the mind which makes known to me an external object, is termed perception. That act of the mind which makes known to me an internal object, is termed consciousness. The power or faculty from which consciousness proceeds, is termed an internal sense. The power or faculty from which perception proceeds, is termed an external sense. This distinction refers to the objects of our knowledge; for the senses, whether external or internal, are all of them powers or faculties of the mind.*

* I have complied with all who have gone before me in describing the senses internal and external to be powers or faculties; and yet, after much attention, I have not discovered any thing active in their operations to entitle them to that character. The following chain of thought has led me to hesitate. One

1

3. But as self is an object that cannot be termed either external or internal, the faculty by which I have knowledge of myself, is a sense that cannot properly be termed either internal or external.

4. By the eye we perceive figure, colour, motion, &c. by the ear we perceive the different qualities of sound, high, low, loud, soft: by touch we perceive rough, smooth, hot, cold, &c.: by taste we perceive sweet, sour, bitter, &c.: by smell we perceive fragrant, fetid, &c. These qualities partake the common nature of all qualities, that they are not capable of an independent existence, but must belong to some being of which they are properties or attributes. A being with respect to its properties or attributes is termed a subject, or

being operates on another: the first is active, the other passive. If the first act, it must have a power to act: if an effect be produced on the other, it must have a capacity to have that effect produced upon it. Fire melts wax, ergo fire has a power to produce that effect; and wax must be capable to have that effect produced in it. Now as to the senses. A tree in flourish makes an impression on me, and by that means I see the tree. But in this operation I do not find that the mind is active: seeing the tree is only an effect produced on it by intervention of the rays of light. What seems to have led us into an error is the word seeing, which, under the form of an active verb, has a passive signification. I feel is a similar example; for to feel is certainly not to act, but the effect of being acted upon the feeling pleasure is the effect produced in my mind when a beautiful object is presented. Perception accordingly is not an action, but an effect produced in the mind. Sensation is another effect it is the pleasure I feel upon perceiving what is agreeable.

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substratum. Every substratum of visible qualities, is termed substance; and of tangible qualities, body.

5. Substance and sound are perceived as existing at a distance from the organ; often at a considerable distance. But smell, touch, and taste, are perceived as existing at the organ of sense.

6. The objects of external sense are various. Substances are perceived by the eye; bodies by the touch. Sounds, tastes, and smells, passing commonly under the name of secondary qualities, require more explanation than there is room for here. All the objects of internal sense are attributes: witness deliberation, reasoning, resolution, willing, consenting, which are internal actions. Passions and emotions, which are internal agitations, are also attributes. With regard to the forI am conscious of being active; with regard to the latter, I am conscious of being passive.

mer,

7. Again, we are conscious of internal action as in the head; of passions and emotions as in the heart.

8. Many actions may be exerted internally, and many effects produced, of which we are unconscious: when we investigate the ultimate cause of the motion of the blood, and of other internal motions upon which life depends, it is the most probable opinion that some internal power is the cause; and if so, we are unconscious of the operations of that power. But consciousness being implied in the very meaning of deliberating, reasoning, resolving, willing, consenting, such operations

cannot escape our knowledge. The same is the case of passions and emotions; for no internal agitation is denominated a passion or emotion, but what we are conscious of.

9. The mind is not always the same: by turns it is cheerful, melancholy, calm, peevish, &c. These differences may not improperly be denominated

tones.

10. Perception and sensation are commonly reckoned synonymous terms, signifying that internal act by which external objects are made known to us. But they ought to be distinguished. Perceiving is a general term for hearing, seeing, tasting, touching, smelling; and therefore perception signifies every internal act by which we are made acquainted with external objects: thus we are said to perceive a certain animal, a certain colour, sound, taste, smell, &c. Sensation properly signifies that internal act by which we are made conscious of pleasure or pain felt at the organ of sense: thus we have a sensation of the pleasure arising from warmth, from a fragrant smell, from a sweet taste; and of the pain arising from a wound, from a fetid smell, from a disagreeable taste. In perception, my attention is directed to the external object: in sensation, it is directed to the pleasure or pain I feel.

The terms perception and sensation are sometimes employed to signify the objects of perception and sensation. Perception in that sense is a general term for every external thing we perceive;