nearly of one uniform bore, diameter, and substance; and whatever
may be the diameter of the tube, the bore and substance will always
bear exact relative ratio to each other. Lastly, it is deposited upon
the wood rounds of a ladder, and requisite lengths are whetted off by
the cold iron, or by a steel file.
VENETIAN FILIGREE GLASS.
As Glass-house manipulations, the
Venetians were preeminent; they produced, if not the most elegant, at
least extremely curious, work. In the manufacture of Glass beads, the
Venetians have no rival, their price being far below English competition.
The Venetian glasses, termed "filigree," have recently been made in
France and Bohemia, and a few specimens in England. Before ornaments
or vessels can be blown, small filigree canes* with white or variously
coloured enamels, must be drawn by the following process:—Pieces
of plain, coloured, or opaque white cane, previously drawn as explained
above, are first whetted off to the required lengths,
* "Cane" invariably means a solid
stick of Glass; and "tube", hollow.