Manganese purple in primitive glass, [28-29]
Manganese in Roman glass, [77]
Manganese and Magnese, [218 note]
Mansell, Sir Robert, [311]
Mansell, Sir Robert, his patents, [305], [311-314]
Mansourah, glass made at, [149], [167]
Mappæ clavicula, notices on glass, [121]
Mariegole, rules of Venetian glass-workers’ guilds, [181-182]