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Form: Gr.hyalos, Lat. vitrum.
Glass was for a long time procured by the Greeks and Romans from Phoenicia and Egypt, where its manufacture had been carried on since very ancient times, and the art had reached an uncommon degree of perfection. The ancients produced glass-work of great beauty, both in form and colours. In later times it was the manufacturers of Alexandria whose reputation stood the highest. The manufacturers carried on, down to the times of the later Empire, a considerable export trade in coloured blown-glass and mosaics. It is uncertain whether the Greeks manufactured their own glass in more ancient times. It was certainly a very costly article down to the time of the Peloponnesian War, and only came into general use at a late period. In Italy the manufacture of glass began at the commencement of the imperial period, first in Campania and afterwards in Rome, where they were ambitious of surpassing the art of Alexandria. From Italy it spread to Gaul and Spain and the more distant provinces, and before long, glass cups, saucers, and bottles became an ordinary part of household furniture. The remains discovered at Herculaneum and Pompeii show that glass windows were not unknown in the imperial age. The ancients were familiar with the manufacture of pure, white, transparent, crystal glass, which was much in request, as well as with the art of colouring glass in every tint. They could imitate every kind of stone, produce varying prismatic tints, and spread layers of different colours upon each other. The art of cutting and polishing glass was very advanced. From bits of glass, cut and polished, were made great numbers of mock pearls, or mock precious stones, and pastes, which were worn, instead of real stones, in rings, tut in intaglio or relief. The most important productions of art were: (1) the vasa diatreta. In these cups the outer side was made of filigree work, cut out of the hard mass. The outer network was of a different colour from the ground, with which it was connected by nothing but slender glass talks. (2) The vessels which exhibit reliefs of white opaque glass on a dark and transparent ground, like the celebrated Portland Vase (See GEMS). Glass tablets, intended for mural decoration, were sometimes ornamented with reliefs of this kind.
Type: Standard
gutter splint
gutter splint
gutter splint