Processes and Methods of Medieval Glass Painting
JSGT 1922 V06 T255-T274
This paper is written solely from the point of view of a glass painter and an antiquary; for I can lay no claim to scientific knowledge or practical experience in glass-making. All I can do is to present some notes gathered together whilst engaged in the study and the restoration of ancient windows during a number of years and to invite discussion on them. Any explanations of chemical or scientific phenomena given in the course of the address must be taken merely as attempts to illustrate the point at issue rather than to represent exact scientific facts.
J. A. Knowles