Editorial note — INDEX
Reading edition
‘... quo facto desuper ipsas
Armavi vitrum docto flatu tenuatum
Ignis; sed post quam pariter sensere calorem
Se vitrum fialis tenuatum junxit honeste.’
These lines, which describe the critical process by which the superficial layer of glass was applied, are unfortunately somewhat obscure. If I have translated them aright, the process did not differ much from that now adopted at Murano. Heraclius is here probably copying an older recipe.