_A Method of drawing a deformed Figure, which will appear well
proportioned from a certain Point of View._
Draw any thing you may fancy on a thin white pasteboard; then prick
it; afterwards put the same on an horizontal surface, which we will
suppose to be another pasteboard. Put a lighted candle behind that
drawing, and draw on the horizontal surface the lines given by the
light: this will give a deformed design. This being done, take away the
drawing that was pricked and the candle; then place your eye where the
light was, and you will see your drawing assume a regular form.