115. But, say you, the picture of the man is inverted, and yet the appearance is erect. I ask, what mean you by the picture of the man, or, which is the same thing, the visible man’s being inverted? You tell me it is inverted, because the heels are uppermost and the head undermost? Explain me this. You say that by the head’s being undermost, you mean that it is nearest to the earth; and, by the heels being uppermost, that they are farthest from the earth. I ask again, what earth you mean? You cannot mean the earth that is painted on the eye or the visible earth—for the picture of the head is farthest from the picture of the earth, and the picture of the feet nearest to the picture of the earth; and accordingly the visible head is farthest from the visible earth, and the visible feet nearest to it. It remains, therefore, that you mean the tangible earth; and so determine the situation of visible things with respect to tangible things—contrary to what hath been demonstrated in sect. 111 and 112. The two distinct provinces of sight and touch should be considered apart, and as though their objects had no intercourse, no manner of relation to one another, in point of distance or position(402). 116. Farther, what greatly contributes to make us mistake in this matter is that, when we think of the pictures in the fund of the eye, we imagine ourselves looking on the fund of another’s eye, or another looking on the fund of our own eye, and beholding the pictures painted thereon. Suppose two eyes, _A_ and _B_. _A_ from some distance looking on the pictures in _B_ sees them inverted, and for that reason concludes they are inverted in _B_. But this is wrong. There are projected in little on the bottom of _A_ the images of the pictures of, suppose, man, earth, &c., which are painted on _B_. And, besides these, the eye _B_ itself, and the objects which environ it, together with another earth, are projected in a larger size on _A_. Now, by the eye _A_ these larger images are deemed the true objects, and the lesser only pictures in miniature. And it is with respect to those greater images that it determines the situation of the smaller images; so that, comparing the little man with the great earth, _A_ judges him inverted, or that the feet are farthest from and the head nearest to the great earth. Whereas, if _A_ compare the little man with the little earth, then he will appear erect, i.e. his head shall seem farthest from and his feet nearest to the little earth. But we must consider that _B_ does not see two earths as _A_ does. It sees only what is represented by the little pictures in _A_, and consequently shall judge the man erect. For, in truth, the man in _B_ is not inverted, for there the feet are next the earth; but it is the representation of it in _A_ which is inverted, for there the head of the representation of the picture of the man in _B_ is next the earth, and the feet farthest from the earth—meaning the earth