or perhaps introduced from some
other ruined edifice, in the walls of the first floor. The windows of
the second story are of pure third order; four of them are represented
above, with their flanking pilaster, and capitals varying constantly in
the form of the flower or leaf introduced between their volutes.

[Illustration: Fig. XXXI.]

Sec. XXXIII. Another most important example exists in the lower story of
the Casa Sagredo, on the Grand Canal, remarkable as having the early
upright form (3 _b_, Plate XIV.) with a somewhat late moulding. Many
others occur in the fragmentary ruins in the streets: but the two
boldest conditions which I found in Venice are those of the
Chapter-House of the Frari, in which the Doge Francesco Dandolo was
buried circa 1339; and those of the flank of the Ducal Palace itself
absolutely corresponding with those of the Frari, and therefore of
inestimable value in determining the date of the palace. Of these more
hereafter.

[Illustration: Plate XVI.
WINDOWS OF THE FOURTH ORDER.]

[Illustration: Fig. XXXII.]

Sec. XXXIV. Contemporarily with these windows of the second and third
orders, those of the fourth (4 _a_ and 4 _b_, in Plate XIV.) occur, at
first in pairs, and with simple mouldings, precisely similar to those of
the second order, but much more rare, as in the example at the side,
Fig. XXXII., from the Salizada San Lio; and then, enriching their
mouldings as shown in the continuous series 4 _c_, 4 _d_, of Plate XIV.,
associate themselves with the fifth order windows of the perfect Gothic
period. There is hardly a palace in Venice without some example, either
early or late, of these fourth order windows; but the Plate opposite
(XVI.) represents one of their purest groups at the close of the
thirteenth century, from a house on the Grand Canal, nearly opposite the
Church of the Scalzi. I have drawn it from the side, in order that the
great depth of the arches may be seen, and the clear detaching of the
shafts from the sheets of glass behind. The latter, as well as the
balcony, are comparatively modern; but there is no doubt that if glass
were used in the old window, it was set behind the shafts, at the same
depth. The entire modification of the interiors of all the Venetian
houses by recent work has however prevented me from entering into any
inquiry as to the manner in which the ancient glazing was attached to
the interiors of the windows.

The fourth order window is fo