Original Treatises on the Arts of Painting, by Mary Merrifield, is a series of translations of medieval painting manuscripts, including dozens of original recipes for pigment production and other studio practices. Many of the translations include the original text in Latin or Italian on the opposite page, so the reader may refer to the original language if desired.
Below is a link to the print version of this book; it is also available as a Google E-book in 2 volumes.
https://books.google.com/books/about/Original_Treatises_Dating_from_the_XIIth.html?id=2xgGAAAAQAAJ
https://books.google.com/books?id=-xgGAAAAQAAJ&source=gbs_book_other_versions