Title
- Reading of the Carta Forestae in the Red Book of the Exchequer1
- Recipe book1
- Recipes1
- Recipes and extracts on alchemy, medicine, metal-working, cosmetics, veterinary science, agriculture, wine-making, and other subjects1
- Reconoychenssas1
- Regarding the monastery of saint Lucy at Bari1
- Registrum Gregorii1
- Registrum alphabeticum1
- Registrum ordinis Cysterciensis1
- Regle et maniere de vivre1
- Regularium1
- Regum Romanae atque imperatorum liber ex veteris Germanis exceptus auctoris1
- Relacion de la manera et forma1
- Relationi de diversi ambasciatori1
- Religiosorum status triplex1
- Repertorium juris civilis1
- Reply to accusations made by Puritan ministers1
- Republic1
- Rerum suo tempore gestarum commentarius1
- Responsorium1