Sunbeams, nature and cause of, i. 211; representation of, by old masters, i. 211.

Sunsets, splendor of, unapproachable by art, i. 161; painted faithfully by Turner only, i. 162; why, when painted, seem unreal, i. 162.

Superhuman, the, four modes of manifestation, always in the form of a creature, ii. 212, 213.

Superiority, distinction between kind and degrees of, i. 417.

Surface, examples of greatest beauty of, ii. 77; of water, imperfectly reflective, i. 329; of water, impossible to paint, i. 355.

Swiss, character, iv. 135, 338, 374; the forest cantons (“Under the Woods”), v. [86], [87].

Symbolism, passionate expression of, in Lombardic griffin, iii. 206; delight of great artists in, iii. 97; in Calais Tower, iv. 3.

Symmetry, type of divine justice, ii. 72-74; value of, ii. 222; use of, in religious art, ii. 73, iv. 75; love of, in mediæval art, iii. 199; appearance of, in mountain form, i. 297; of curvature in trees, i. 400, v. [34]; of tree-stems, v. [58], [60]; of clouds, i. 219.

Sympathy, characteristics of, ii. 93, 169; condition of noble picturesque, iv. 10, 12, 14; the foundation of true criticism, iii, 22; cunning associated with absence of, v. [266]; necessary to detect passing expression, iii. 67; with nature, ii. 91, 93, iii. 179, 193, iv. 14, 15; with humanity, ii. 169, iv. 11; absence of, is vulgarity, iii. 83, v. [264]; mark of a gentleman, v. [263], [264].