In the above sketch (Fig. 90) the squares on the ground
represent 3 feet each way, or one square yard. Taking this as our standard measure, we find the door on the left is 10 feet high, that the archway at the end is 21 feet high and 12 feet wide, and so on.
Fig. 91 is a sketch made at Sandwich, Kent, and shows a somewhat similar subject to [Fig. 84], but the irregularity and freedom of the perspective gives it a charm far beyond the rigid precision of the other, while it conforms to its main laws. This sketch, however, is the real artist's perspective, or what we might term natural perspective.
Fig. 91. Natural Perspective.
[ XXXVII]
Application of the Reduced Distance and the Vanishing Scale to Drawing a Lighthouse, &c.
In the drawing of Honfleur (Fig. 92) we divide the base AB as