An edition of just over 1500 medical receipts transmitted in three fourteenth-century compendia. The particular interest of these multilingual compilations lies in their date – earlier than most published receipts – and their showing the three languages of medieval England in vigorous and simultaneous use. There are detailed indexes, including a survey of the medical conditions covered, and the notes provide comprehensive references to analogous receipts in other published collections, so shedding light on the processes of compilation and transmission.