Historical Painting Techniques, Materials, and Studio Practice

28. On these "clothlet colors," see Wallert, A. 1993. Natural organic colorants on
    medieval parchment: anthocyanins. ICOM Committee for Conservation Preprints,
    516-23; and Willhauk, N. 1981. Farbprobleme spatmittelalterlicher Buchmalerei.
    Restaurator (1-2):103-34.


29. Bietola is a beet or garden beet; bietolina = weld (Reseda luteola) (?).


30. A plant with the same name, gilosia (Amaranthus tricolor?), is mentioned in Bol.
    MS, 117, p. 439, for making a purple clothlet color.


31. Gettens R. J., and E. West Fitzhugh. 1966. Azurite and blue verditer. Studies in
    Conservation (2): 54-61.


32. Quite similar is Siena MS I, IV, p. 22. In Simone's manuscript, however, the
    vermilion prescribed by Ambruogio is replaced for a black ink. The recipe recurs
    in a rather abbreviated version in Florence, Biblioteca Laurenziana, MS Ash­
    burnhamia 349, fol. 84v.

Wallert 47