"A Lecture on Stained Glass" by Robert Anning Bell is a scholarly examination of the art and craft of stained glass, delivered in the early 20th century, specifically in 1922. This lecture, presented at The Royal College of Art, explores the history, techniques, and modern tendencies in the practice of stained glass artistry. Bell not only discusses the evolution of stained glass from its early medieval roots to contemporary practices but also emphasizes its spiritual and decorative significance within Christian architecture. In the lecture, Bell presents a detailed overview of stained glass, discussing its materials and the historical context of its use in religious settings. He explicates the processes involved in creating stained glass, from the selection of colored glass to the techniques of painting and leading. Bell notes the importance of communal work in stained glass creation and underscores the balance between artistic expression and craft. He also highlights modern tendencies, such as the shift toward stronger colors and bolder design, while lamenting some lost traditions that once enriched the art form. Overall, the lecture serves as both an educational resource and a passionate call for a deeper appreciation of stained glass as a unique and expressive medium. (This is an automatically generated summary.)