Roquetta, term explained, [13]
Rothschild, Lord, carved cup of Roman glass, [73]
Ruby-red, perhaps known to Ancients, [52]
Ruby-red, in mediæval window-glass, [133]
Ruby glass of Kunckel, [289-291]
Ruby glass examples of, [291]
Rudolph II. patronises carving of rock-crystal, [278-279]
Rui or rulli, small window-panes, [182]
Ruimer or roemer of Dutch, [295]
Sabellico on Venetian glass, [201]