My thanks are also due to the following firms: Messrs. Melin & Co., Crutched Friars; The Hermansen Engineering Co., Birmingham; The Glass Engineering Co., Edinburgh; and Banks & Co., Edinburgh, who have kindly supplied me with illustrations.

PERCIVAL MARSON.

Craigentinny,

Edinburgh.

CONTENTS

CHAP. PAGE
PREFACE[V]
I.HISTORY[1]
II.THE CHEMISTRY OF GLASS-MAKING AND THE MATERIALS USED[4]
III.THE CHEMICAL AND PHYSICAL PROPERTIES OF GLASS[15]
IV.THE COMPOSITION OF THE DIFFERENT KINDS OF GLASS[24]
V.COLOURED GLASS AND ARTIFICIAL GEMS[28]
VI.DECOLORIZERS[32]
VII.THE REFRACTORY MATERIALS USED[36]
VIII.GLASS HOUSE FURNACES[43]
IX.GLASS-MELTING POTS AND THEIR MANUFACTURE[59]
X.LEHRS AND ANNEALING[71]
XI.THE MANIPULATION OF GLASS—GLASSMAKERS’ TOOLS AND MACHINES[76]
XII.CROWN, SHEET, AND PLATE GLASS[89]
XIII.TUBE, CANE, AND CHEMICAL GLASSWARE[96]
XIV.OPTICAL GLASS[104]
XV.DECORATIVE GLASSWARE[108]
XVI.ENGLISH AND FOREIGN METHODS OF GLASS MANUFACTURE COMPARED[118]
APPENDIX[123]
INDEX[125]

LIST OF ILLUSTRATIONS