The Latin translation by Constantinus Africanus (c.1020-1098/9) of an Arabic treatise on urines (Kitāb al-bawl) by Abū Ya'qūb Ishāq ibn Sulaymān al-Isrā’īlī (fl. c.855-932), known to the West as Isaac Judaeus or Isaac Israeli, a Jewish doctor and philosopher, and physician of the Fatimid caliph ...