The categories recognised by Ruskin are:
the 3rd Order Ducal Palace lateral windows of the Rio di Palazzo façade, which are grouped at Notebook M p.104 with the windows of the old sides of the interior court as a ‘great independent period’.
the Ducal Palace windows with traceries, two of them on the lateral facade, two of them on the facade facing the Bacino. When Ruskin focuses on the windows with traceries he numbers them from 1 to 4, with numbers 1 and 2 on the Rio di Palazzo facade, and numbers 3 and 4 on the facade facing the Bacino. In the diagram at Notebook M p.100L the two windows on the Rio facade are ignored and the first two windows with traceries counting from right to left from the corner at the Ponte della Paglia are called ‘a’ and ‘b’.
the windows on the Bacino beyond the two with traceries (Notebook M p.97, Notebook M p.98, Notebook M p.100), and those on the Piazzetta facades (Notebook M p.100 and Notebook M p.101) which have been subjected to restoration and the removal of their traceries. They provide evidence of the degradation of Gothic.
a window to the north by the Porta della Carta which had its spiral flanking shafts left - see Notebook M p.103
At Works, 11.32 Ruskin begins a discussion of the windows of the ‘Byzantine Renaissance’ on the Rio di Palazzo facade further back from the sea than the windows with traceries and the 3rd order windows of the upper stories. There do not appear to be any references in the notebooks to this group of windows.
For Ducal Palace Windows to Piazzetta see Notebook M p.100 to Notebook M p.102:
For Ducal Palace Windows to Front see Notebook M p.97 and Notebook M p.98.
[Version 0.05: May 2008]