Watching Syracuse University Libraries' Brodsky Lecture by Nancy K. Turner: "Materials of the Illuminator's Art: Medieval Recipes, Modern Identifications, and the Preservation of #Pigments, Dyes, and Metals in Medieval #Manuscripts." They explicitly called out the birdsite, so I may be alone in this, but if I have comments, I'll use #manuscriptConservation
[You know what, that's very lib-centric. I'll add some more hashtags wherever applicable]