The author of this untitled medical treatise is unknown. The introduction states that the work consists of four chapters: 1) on the basic principles of classification of medical sciences; 2) on medication and nutrition; 3) on diseases that infect certain parts of the body; and 4) on diseases that infect other parts of the body. The main text is in Arabic, and some notes are in Persian. The manuscript, written in a Nastaliq script with nine lines per page, is difficult to date because the colophon is missing. A printed note, probably clipped from an old catalog, is mounted on the last blank page and states: "A very fine and unpublished Persian [sic] manuscript on medicine in red leather binding of 17th century." It cannot be confirmed whether the treatise in fact dates from the 17th century or that it was ever published. The manuscript is in the Medical History Library at the Yale School of Medicine.