Collection of four Arabic manuscripts, copied by an anonymous hand probably in the 17th century, in Turkey, on logic and the art of debate. 1. Fawāʼid ʻijāb ʻalá Sharḥ al-Risālah al-ʻAḍudīyah (folios 1b-19b) by Mīr Abū al-Fatʹḥ ibn Makhdūm al-Saʻīdī, 16th cent. (flourished during the reign of Dawlatshāh of Crimea, 958-985/1551-1577) comprising glosses on a commentary (author not mentioned) on al-Risālah al-ʻAḍudīyah of ʻAḍud al-Dīn ʻAbd al-Raḥmān ibn Aḥmad al-Ījī (d. 1355?), a prolific Muslim scholar from Shīrāz, Iran, on logic. 2. Sharḥ al-Risālah fī ʻilm ādāb al-baḥth (folios 20b-24a) on the art, manners and etiquette of debate and debating from an Islamic point of view by Aḥmad ibn Muṣṭafá Ṭāshkubrīʹzādah (1495-1561), a prolific Arabized Ottoman Turkish scholar, historian and bibliographer, being a commentary on his own work Risālah fī ʻilm ādāb al-baḥth (also known by the title: Risālah fī ʻilm ādāb al-baḥth wa-al-munāẓarah). 3. Sharḥ al-Risālah al-ʻAḍudīyah (folios 24b-28a) by Mullā Muḥammad al-Ḥanafī (an obscure author). 4. Definitions of some terms dealing with the art of debate by an anonymous (folios1a and 28b).