Mathesius, Sermons for Miners, [262-263]
Matricole, rules of glass-workers’ guilds in Venice, [181-182]
Mazer-like forms in glass, [252]
Mediæval treatises on alchemy, etc., [119-124]
Mediæval glass, rarity of, [133-134]
Memlook Sultans, art of, [147-148]
Merret, Art of Glass quoted, [7]
Merret, on properties of glass, [7]
Merret, on glass of lead, [316-317]
Mesomedes on glass-houses, [80]