The sketcher's manual, or, The whole art of picture making reduced to the simplest principles : by which amateurs may instruct themselves without the aid of a master (1841)
Howard, Frank, 1805-1866 · London : Darton and Clark · leaf 25
Section II. PICTORIAL EFFECT. Pictorial Effect is wholly independent of the objects introduced, and should never be neglected, even in the slightest sketch. It confers an agreeable character upon the most trifling object, and, in many instances supersedes the necessity of any objects. A post, or a… … becomes an agreeable subject of contemplation; and light and shadow alone, when properly treated, excite that impression on the mind, B 2
