1. Add MS 16660/16 Reference (shelfmark): Add MS 16660/16 Title: Risālah fī taḥqīq al-ʿilm Scope & Content: Author: Ṭūsī, Naṣīr al-Dīn Muḥammad ibn Muḥammad, 1201-1274 VIAF ID: 12392936 Subject: Islamic philosophy Collection Area: Oriental Manuscripts Languages: Arabic Date Range: 17th century Extent: 1 item