Society of Glass Technology · [Sheffield] · leaf 156
tion in a lime glass containing 76 per cent, of Si02, 3 per cent,of CaO, 15 per cent, of Na20, and 6 per cent, of B203. Thisglass, when melted on a small scale (^ lb.), showed no signs ofseparation on cooling. Melted on a larger scale (28 lb.), it depositedopaque silica blobs with the…
Glass
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
