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81 54
No 33 - 34 CA DANIELI
Palazzo Danielei. 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 long b2 on b: marking the
lijes coincide: and A2 is the apex of arch: then lay
A or A2: ad a2 on a: and A, a2 C2 will give the opposite
cusp.
No 34. Two traceries from left hand cusp of same window
The one, at A gi es 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
For early cusping vid Loach. plate IX H 10 D. 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 e. 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
reaches it and 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 soft-
ened than 2, 4, or even the frequent and beautiful 3
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[Version 0.05: May 2008]