I340

Having measured a Face, and Painted it exactly according to the Measures, you will find the Painting appear larger than the Life: The reason take as follows; A B is the Breadth of the space taken up by the Portrait, [Tab. 2. Fig. 4.] which is placed at the distance marked C F, where the Cheeks are; and must have the whole Length of the Line A C behind, now in this case the Temples will be seen at the distance O R, of the Lines A F B F, so that they will appear narrower than the Life, by the two spaces C O and R D: whence it follows, that the two Lines C E and D F, to become more short, must join the Plan on which the whole Height is designed; that is, the Lines A E and B F, where the true bigness is found; so that the difference as we have already mentioned, lies in the two spaces O C and R D.