Robson, William: Grammigraphia; or the Grammar of Drawing. (London, 1799)

78

SECTION III.

Distinction between Position and Situation,

CORRESPONDING WITH THE

Distinction between the Real and Artificial
Perspective Planes.

L HERE are three Positions on the Artificial Perspec-
tive Plane, which correspond with the three Appearances
on the Real Perspective Plane, as described in Part the
First.

And there are Seven Real Situations on the Real Per-
spective Plane, to which correspond Seven Natural
Situations on the Artificial Perspective Plane.

The character of the Seven Situations, and the Rules
which follow, of course are applicable both to the Real
and Natural Situations, on their respective Planes.