[M.42L] [M.42] Ca d’Oro. Traceries. first story. 42 A [diagram] No 15. Fig 1. Accurate drawing of the meeting of the in rolls in the tracery of the great first floor colonnade of d-e [diagram] 3½ Ca d’Oro: The foliation with the great roll of first order e f ¾ is very singular: the stone cutting thorough and masterly: f g [diagram] 3¾ the roll appears narrowed when it branches, owing to the g h ¾ sharp marking of the shallow interstice points: but it is h k [diagram] 2½ quite true & parallel throughout, and the lines continuous k l ¼ in each direction: (By the bye in the lateral windows, No 17 l m ½ 18 &c I in vain tried to find the centres of arcs: they m n ¼ were continually changing:) The section given beside n o cusp 2¼ fig 1 is inaccurate in the cavetto: it is accurate opposite with measures A. The capital abacus is square: about 1ft " 7 B [diagram] each side; the capitals luxuriant in the doge’s palace manner and I suspect, later than moulding. Ft. in Ft. in at B. opposite are the measures of the trefoil arch of tracery a b (chord) 1 " 5½ 1 " 6 drawn in fig 1 No 15. and similarly lettered: These b d 1 " 1¾ 1 " 2½ measures are from within the cusp, across space. b c (chord) 1 " 3¼ 1 " 4 The second column of measures was measured from another arch and b2 d2 (maximum) 1 " 3 1 " 4 is probably the most accurate. c C 2 4¾ 2 " 5 At C. opposite are the measures of the great 4 foil of this a e 2 " 9¾ 2 " 9½ same tracery: a b &c being the inner side of the great roll, and a2 b2 &c the extremities of cusps. C [diagram] Note also in constructing the tracery that the foliation with the a b 2 " 1¼ c d 3 " 8½ a2 b2 1 " 2½ c2 d2 2 " 9
[Version 0.05: May 2008]