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[M.39L] [M.39] Ca d’Oro. Traceries. First Story 39
Measures of lateral window of Ca d’Oro
truly as possible the proportion of the light to the stone: The curious
Ft. in. leaf shapes of the foils are the pure shapes of the lights: the bounding
i k 1 " 0 lines being the extreme cusp edges: and the measures are all
l m 11 taken within the cusp: across the open space: indicating the
n o 1 " 1 entire space of light. The top of the window being inaccurately drawn
p q 1 " 3½ is given at G. exactly: with section at a G. inside of
zz 2¼ the stone work to the cusp of the 4foil r3.
z2z2 3¼ Now this window outside appears to be exactly the same as the
r s 4½ outermost window next the Rialto: In the plan of the tracery
c d 1 " 0 it is: in the section it is nearly: with a small difference
d d2 11 presently to be noted: But in the measures of its lights it
d a2 10½ is strangely different: They are given opposite, using the figure
r2r3 2 (or 2¼) and lettering of the other window: The height r4 to b2 is about
r2s2 2½ 4 ft 9. * and the apex is so nearly reached by the circle which
s3s4 10 is pushed up into it, that in the figure G. if it referred to
d e 9½ * and B2to the correspondent point on the this lateral window there should be no central incised [diagram].
a2b2 1 " 11 other side of window 5" 3 the two rolls choking it up: there is only a flat space.
at A is a section carefully drawn from this lateral window
at the level B2- a2 showing the fall of the tracery on the
abacus head of the square pilatser: A2 in this section
is a most important point: the masonry joint is then, the
entire tracery being inserted within it; it is B2, r4 and
G in the other figures: The shaded part of the section shows
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[Version 0.05: May 2008]