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[Footnote: Leonardo wrote these lines on the margin of a page of the
Trattato di Francesco di Giorgio, where there are several drawings
of columns, as well as a head drawn in profile inside an outline
sketch of a capital.]
7
68.
a b is 1/3 of n m; m o is 1/6 of r o. The ovolo projects 1/6
of r o; s 7 1/5 of r o, a b is divided into 9 1/2; the
abacus is 3/9 the ovolo 4/9, the bead-moulding and the fillet 2/9
and 1/2.
[Footnote: See Pl. LXXXV, No. 16. In the original the drawing and
writing are both in red chalk.]
Pl. LXXXV No. 6 (MS. Ash. II 6b) contains a small sketch of a
capital with the following note, written in three lines: I chorni
del capitelo deono essere la quarta parte d'uno quadro (The horns
of a capital must measure the fourth part of a square).
MS. S. K. M. III 72b contains two sketches of ornamentations of
windows.
In MS. C. A. 308a; 938a (see Pl. LXXXII No. 1) there are several
sketches of columns. One of the two columns on the right is similar
to those employed by Bramante at the Canonica di S. Ambrogio. The
616
Page
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