cause it is striped,
but it does not look a bit rounder; and a cheek is prettier because
it is flushed, but you would see the form of the cheek bone better
if it were not. Color may, indeed, detach one shape from another, as
in grounding a bas-relief, but it always diminishes the appearance
of projection, and whether you put blue, purple, red, yellow, or
green, for your ground, the bas-relief will be just as clearly or
just as imperfectly relieved, as long as the colors are of equal
depth. The blue ground will not retire the hundredth part of an inch
more than the red one.

[52] See, however, at the close of this letter, the notice of one
more point connected with the management of color, under the head
"Law of Harmony."

[53] See farther, on this subject, Modern Painters, vol. iv. chap.
viii. Sec. 6.

[54] See Note 7 in Appendix I.

[55] "In general, throughout Nature, reflection and repetition are
peaceful things, associated with the idea of quiet succession in
events; that one day should be like another day, or one history the
repetition of another history, being more or less results of
quietness, while dissimilarity and non-succession are results of
interference and disquietude. Thus, though an echo actually
increases the quantity of sound heard, its repetition of the note or
syllable gives an idea of calmness attainable in no other way; hence
also the feeling of calm given to a landscape by the voice of a
cuckoo."

[56] This is obscure in the rude wood-cut, the masts being so
delicate that they are confused among the lines of reflection. In
the original they have orange light upon them, relieved against
purple behind.

[57] The cost of art in getting a bridge level is _always_ lost, for
you must get up to the height of the central arch at any rate, and
you only can make the whole bridge level by putting the hill farther
back, and pretending to have got rid of it when you have not, but
have only wasted money in building an unnecessary embankment. Of
course, the bridge should not be difficultly or dangerously steep,
but the necessary slope, whatever it may be, should be in the bridge
itself, as far as the bridge can take it, and not pushed aside into
the approach, as in our Waterloo road; the only rational excuse for
doing which is that when the slope must be long it