e
where there is a difficulty in managing some unvaried line, and where
the expense of a pierced parapet cannot be encountered: but remember
always, that the value of the battlement consists in its letting shadow
into the light of the wall, or _vice versa_, when it comes against light
sky, letting the light of the sky into the shade of the wall; but that
the actual outline of the parapet itself, if the eye be arrested upon
this, instead of upon the alternation of shadow, is as _ugly_ a
succession of line as can by any possibility be invented. Therefore, the
battlemented parapet may only be used where this alternation of shade is
certain to be shown, under nearly all conditions of effect; and where
the lines to be dealt with are on a scale which may admit battlements of
bold and manly size. The idea that a battlement is an ornament anywhere,
and that a miserable and diminutive imitation of castellated outline
will always serve to fill up blanks and Gothicise unmanageable spaces,
is one of the great idiocies of the present day. A battlement is in its
origin a piece of wall large enough to cover a man's body, and however
it may be decorated, or pierced, or finessed away into traceries, as
long as so much of its outline is retained as to suggest its origin, so
long its size must remain undiminished. To crown a turret six feet high
with chopped battlements three inches wide, is children's Gothic: it is
one of the paltry falsehoods for which there is no excuse, and part of
the system of using models of architecture to decorate architecture,
which we shall hereafter note as one of the chief and most destructive
follies of the Renaissance;[54] and in the present day the practice may
be classed as one which distinguishes the architects of whom there is no
hope, who have neither eye nor head for their work, and who must pass
their lives in vain struggles against the refractory lines of their own
buildings.

Sec. XVII. As the only excuse for the battlemented parapet is its
alternation of shadow, so the only fault of the natural or level parapet
is its monotony of line. This is, however, in practice, almost always
broken by the pinnacles of the buttresses, and if not, may be varied by
the tracery of its penetrations. The forms of these evidently admit
every kind of change; for a stone parapet, however pierced, is sure to
be strong enough for its purpose of protection, and, as regards the
strength of the building in general, the lig