A collection of Greek, Roman and Byzantine texts on medicine, written in Latin, that was mainly used as medical school textbook or reference manual between the 13th and 16th centuries. The Articella grew around a synthetic exposition of classical Greek medicine written in Baghdad by the Nestorian Christian Hunayn bin Ishaq (Johannitius), who frequently translated from Greek to Syriac to Arabic. His synthesis was based on Galen's Ars medica (Techne iatrike; Questions on medicine for students) and thus became known in Europe as Isagoge Ioannitii ad tegni Galieni. The collection includes works of Hippocrates, Galen,Theophilus Protospatharius, Johannitius, and the Byzantine physician Philaretus. As a medical library in one convenient volume, which underwent six editions in the 15th century and many other editions in the first half of the 16th century, the work reflects changing attitudes to various ancient texts and translations through the evolution of its contents.  ISTC no. ia01142500. Digital facsimile from the Bayerische Staatsbibliothek at this link.