Soluble glass, 24 Spun glass, 15, 100 Stirring glass, 105 Strengthened glass, 95 Stress in glass, 18, 104 Striae, 9 Sulphates, 5, 25 Table glass, 25, 76, 77 Tank glass, 26, 57 Technical Education in glass manufacture, 120 Temperature of furnaces, 20, 105 Thermal expansion of glass, 16 Tin oxide in glass, 10 Tizeur, 43, 46 Tools, 76 Topaz, 31 Trades Unionism, 86 Tube, 26, 98 Tumblers, 85, 110 Turquoise, 31 Uranium, 28 Varieties of glass, 25, 102 Venetian glass, 2 Violet glass, 28 Waste glass, 30 Waterglass, 24 Wine-glass making, 82 Window glass, 1 Wired glass, 95 Working hours, 120 Zinc oxide, 9 _Printed by Sir Isaac Pitman & Sons, Ltd., Bath, England_ ------------------------------------------------------------------------ ● Transcriber’s Notes: ○ Missing or obscured punctuation was silently corrected. ○ Typographical errors were silently corrected. ○ Inconsistent spelling and hyphenation were made consistent only when a predominant form was found in this book. ○ Text that was in italics is enclosed by underscores (_italics_); text that was bold by “equal” signs (=bold=). ○ The use of a caret (^) before a letter, or letters, shows that the following letter or letters was intended to be a superscript, as in S^t Bartholomew or 10^{th} Century. ○ Superscripts are used to indicate numbers raised to a power. In this plain text document, they are represented by characters like this: “P^3” or “10^{18}”, _i.e._ P cubed or 10 to the 18th power. ○ Variables in formulae sometimes use subscripts, which look like this: “A_{0}”. This would be read “A sub 0”. End of Project Gutenberg's Glass and Glass Manufacture, by Percival Marson