al-Sirr al-muṭayyab fī al-ʻamal bi-al-rubʻ al-mujayyab : manuscript, [1572?].

"A treatise on the use of the sinuated quadrant."Watermark: Three crescents. See Edward Heawood, Watermarks, Mainly of the 17th and 18th Centuries (Hilversum, 1950), p. 24.Contains diagrams and tables.Text rubricated; marginal corrections in hand of copyist (same as that of Mich. Isl. Ms. 723,2).Date and name of copyist in colophon: tammat hādhihi risālah ... ʻalá yad kātibihā al-faqīr ilá Allāh ... Muḥammad ʻIrāqī al-Shiblanjī[?] ... wa-kāna dhālik fī 24 Rabīʻ al-awwal sanat 98[0?] [4 August 1572?].For another copy of this text see Mich. Isl. Ms. 835,11.Pp. [4-24]. Bound with: Risālah mukhtaṣarah fī al-rubʻ al-mashhūr bi-al-muqanṭarāt, pp. [24-30].GAL,"A treatise on the use of the sinuated quadrant."Mode of access: Internet.McGregor FundImam at the Umayyad Mosque in Damascus.Purchased in Cairo, 1933/34. Owner's mark: on p. [1], manuscript notes in handwriting of Max Meyerhof

al-Itḥāf ʻalá nubdhat al-isʻāf : fī maʻrifat qaws al-khilāf wa-huwa ḥall muqawwimāt al-ʻuqūd wa-basṭuhā lil-ajzā wa-basṭ ʻuqūd kull shayʾ ka-al-juyūb wa-al-ẓilal wa-al-maṭāliʻ wa-ghayrihā min al-aʻmāl al-falakīyah : manuscript, [1st half of 18th cent.?].

al-Khawānikī's commentary on Shams al-Dīn Muḥammad ibn Abī al-Fatḥ al-Ṣūfī al-Miṣrī's Nubdhat al-isʻāf fī maʻrifat qaws al-khilāf, "a short treatise on a technique used in the compilation of ephemerides." David A. King, A Survey of the Scientific Manuscripts in the Egyptian National Library (Winona Lake, 1986), p. 83.Watermark: Three crescents. See Edward Heawood, Watermarks, Mainly of the 17th and 18th Centuries (Hilversum, 1950), p. 24.Contains astronomical tables.Title and text rubricated; text and corrections in margins enclosed by thin red lines.Possible date of early to mid-18th cent. based on death date of author.King, Survey,al-Khawānikī's commentary on Shams al-Dīn Muḥammad ibn Abī al-Fatḥ al-Ṣūfī al-Miṣrī's Nubdhat al-isʻāf fī maʻrifat qaws al-khilāf, "a short treatise on a technique used in the compilation of ephemerides." David A. King, A Survey of the Scientific Manuscripts in the Egyptian National Library (Winona Lake, 1986), p. 83.Mode of access: Internet.History of Science, Meyerhof 29211Important 18th-century Egyptian astronomer; pupil of Egyptian astronomers Riḍwān Afandī al-Falakī (d. 1710) and Muḥammad al-Birshamsī; close friend of Ḥasan al-Jabartī; his writings very popular in 18th-19th centuries. See J. Heyworth-Dunne, An Introduction to the History of Education in Modern Egypt (London, 1938), p. 79.Purchased in Cairo, 1933/34. Owners' marks: on p. [1], owner's autograph, with seal: tamallakahu al-faqīr ilá Allāh ... Ḥasan al-Jabartī; on p. [12], unidentified seal; inside cover, manuscript notes in unidentified handwriting: From Dr. Meyerhof, May 1934