The Materia medica consists of five books on medicinal substances.
This copy contains only the last three books (maqālahs) of the
treatise, of which Books 3 and 4 cover herbs and roots, and Book 5
wines &c. The copy was completed on 25 Dhu al Hijjah 637 AH (17
July 1240 CE) by al-Ḥasan ibn Aḥmad ibn Muḥammad al-Nashawī
at al-Madrasah al-Niẓāmīyah, presumably in Baghdad, though
madrasahs of the same name occur in other cities.