Page:A Treatise on Painting.djvu/342

 MISCELLANEOUS OBSERVATIONS.  a house be painted on the pannel B C, at the



apparent distance of one mile, and by the side of it a real one be perceived at the true distance of one mile also; which objects are so disposed, that the pannel, or picture, A C, intersects the pyramidical rays with the same opening of angles; yet these two objects will never appear of the same size, nor at the same distance, if seen with both eyes . Rh