Risālah fī al-burūj wa-al-manāzil : Farāʼid jawharīyah fī fawāʼid al-mīqātīyah
رسالة في البروج و المنازل : فرائد جوهرية في فوائد الميقاتية | Title from fol. 2a: Farāyid jawharīyah fī fawāyid mīqātīyah | Farāyid jawharīyah fī fawāyid mīqātīyah
This work is an introductory, but well-organized, treatise on the elements of time-keeping and reckoning. The treatise is divided into seven sections and a conclusion. It introduces the Arabic, Coptic, and Syriac (or Alexandrian) calendars, and comments on the Persian, Roman, and Hebraic calendars. The work gives the names and lengths of the months in various calendars, explains the different methods for ascertaining the…
Contributor:
Budayrī, Muḥammad Ibn Muḥammad - Mansuri Collection (Library of Congress) - Manṣūrī, Maḥmūd Al-Imām