R.13.16 (Wren Library, Trinity College Cambridge)

'Tract on the Deduction of the Arabic from the Roman dates'. Pages have been ruled for a calendar, which has never been filled in.

Contains some instructions about the use of the quadrant.

From the same work as the preceeding.

Also contains a medical diagnosis of his constitution, an account of rememdies used by him for his ailments,and some verses by Ibn Ḥijjah al-Ḥamawī, Taqī al-Dīn Abū Bakr ibn ʻAlī,‏ d. -1434

ِ A fragment of the work.

Written on the title page of the preceeding work.

Commentary on Waraqāt fī al-ʿamal bi-rubʿ al-muqanṭarāt by Māridīnī, ʻAbd Allāh ibn Khalīl,‏ ‎d. -1406, a treatise on the use of the Azimuth quadrant.

Includes the times of the sun's rising, as well as that of the signs of the Zodiac, forming an ephemeris for the year 1594 AD.

A short treatise of fifteen chapters on the use of the graduated Azimuth quadrant.

For the year 1552 AD.

A fragment of the work, containing a calculation of the age of the world.

A treatise of twenty chapters and a khātimah on the use of the quadrant.

A short treatise in seven chapters, entitled "The royal road to the calculation of the ratios of the sines".

This is the first page of the following treatise, with many marginal notes and references written over it.

A treatise on the sine and the use of the mujayyab quadrant, explanatory of the work of the same name by Qasṭallānī, Aḥmad ibn Muḥammad,‏ ‎d. 1447 or 1448-1517 or 1518.

A treatise on the practical working with the sine of the quadrant, consisting of twenty-four chapters.

A treatise on the use of the standard quadrant, in fourteen chapters.

Corrected work on the use of the mujannaḥ quadrant (used for the same purposes as the mujayyab quadrant).

A treatise on the use of the Azimuth quadrant

A treatise on the mujayyab quadrant, consisting of a preface and twenty chapters.

A treatise on the practical working with the table of the ratios of sines.