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[M.54L] [M.54]
[diagram] No 33 - 34 Ca Danieli 54
Palazzo Danieli: No 33. True traceries of the windows described above
C. is a left hand cusp: C-b is continuous. b2 is the
point B; in the continued line lay b2 on b: making
the lines coincide: and A2 is the apex of arch: then
lay A on A2: ad a2 on a: and A, and A a2 C2
For early cusping vid Loach. plate IX H 10 D. will give the opposite cusp.
No 34. Two traceries from left hand cusp of same
window The one, at A gives nearly the base of the cusp
as it dies into the arch: and the other, at B nearly the apex.
The line of the enclosing arch is seen in two places at the edge
of the paper in B: and all along in A: the paper was bent
into it. in B some attempt was made to trace the bottom of the
cusp chamfer. The two lines about express its depth.
Cusps. Now note in this architecture, the esquisite grace of the
great cusp, whose line is one unbroken curve melting
into the other, as theoretically foliation ought to be, vid fig 2
p 51, and compare it with the foliation of the cusp, which is
actually nothing more than three triangles set on its fillet as
opposite, fig 1 and then a little softened: The reason being
that the very value of the great cusp renders it wiser to insist
upon its line by reduplication, than to vary it by another
harmony: Consider how much finer in this respect 1 is, when
softened than 2, 4, or even the frequent and beautiful 3
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[Version 0.05: May 2008]