1. Opera medicinalia : Petrus de Abano Additiones ad practicam Creator: Ibn Māsawayh, Yūḥannā, -857 or 858 Published / Created: 9 June 1471. Call Number: Incunabula +M-509 (Goff) Image Count: 422 Description: Yale Med copy imperfect: leaves 99-100 (both blank), 169-188, 204, 231-236 (final two blank) wanting. Publisher: Laurentius Canozius de Lendenaria Subject (Topic): Pharmacopoeias, Pharmacy, and Medicine, Arab Found in: Medical Historical Library, Cushing/Whitney Medical Library > Opera medicinalia : Petrus de Abano Additiones ad practicam