Pointillé engraving on glass, [297-298]
Poitou, Roman glass found in, [84-85]
Po-li, Chinese name for glass, [347]
Pompeii, glass from, [60], [69-70]
Pontil or punto, [14]
Porcelain, relation to glass in history, 3
Porcelain, imitated by lattimo glass, [205-206], [239], [249], [290], [291], [334]
Portland or Barberini vase, [68-69]
Potash used for inland glass, [11], [136]
Potash, source of, [13]