CHAPTER VIII.

BLOWN AND PRESSED GLASS.

Raw materials--Bohemian glass and flint glass--Gathering and blowing--Chair work--Hand work--Production of tumblers by hand--Application of coloured glass to blown articles--Use of moulds as aids to blowing--Roughening effect of moulds--Fire-polishing by reheating--Use of compressed air--Pressed glass--Moulds and presses-- Capacity and limitations of pressing process _p._ 108