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The Uganda Journal, Volume I, Number 1, January 1934
The Uganda Literary and Scientific Society was established at Entebbe, Uganda Protectorate, in 1923. Its main activity consisted of the reading of papers and the delivery of lectures on topics relating to Uganda. In 1933 the society moved its headquarters to Kampala and decided to issue a regular publication, The Uganda Journal. The journal’s declared aim was “to collect and publish information which may add to our knowledge of Uganda and to record that which in the course of time might be lost.” Four issues per year were published ...
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National Library of Uganda
A Brief Essay on the Quadrant Known as Muqantarat
This manuscript on astronomy and surveying describes the sine quadrant and parallel circles. Its author is unknown. The work explains how to measure topographic heights, know prayer times, and determine the direction of the Kaaba in Mecca, toward which Muslims pray. The date of transcription is unknown, but was possibly in the 18th century. The manuscript is from the Bašagić Collection of Islamic Manuscripts in the University Library of Bratislava, Slovakia, which was inscribed on the UNESCO Memory of the World register in 1997. Safvet beg Bašagić (1870-1934) was a ...
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University Library in Bratislava
The Fathiyya Essay on Using the Mughayyab Quadrant
This treatise by Badruddin al-Maridini (died 1506 [912 AH]), better known as Sibt al-Maridini, includes an introduction, 20 sections, and a conclusion. The treatise discusses a range of issues in astronomy, surveying, and mathematics. It describes the sine quadrant and parallel circles, and explains how to measure the width of a river, the angle of a star, the depth of a well, or the height of a mountain. Al-Maridini, whose parents were from Damascus, was born, raised, and educated in Cairo late in the Mamluk Dynasty (1250–1517). The manuscript ...
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University Library in Bratislava
A Guide to Geometry, Surveying, the Launching of Missiles, and the Planting of Mines
This work, primarily intended for the training of military men, is a translation from a number of sources originally written in German and French. It was presented to the Bureau of Warfare and Jihād (Dār al-naṣr wa al-jihād) in Muḥarram, AH 1193 (early winter, 1779), or nearly two decades before Napoleon’s invasion of Egypt in 1798. The work’s compiler, ʻUthman ibn ʻAbd al-Mannān, a translator at the Ottoman court in Belgrade, had converted to Islam from Christianity. The title of the work hints at his sincere effort to ...
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National Library and Archives of Egypt
The Abridged Commentary on "The Apple in the Science of Measurement"
This manuscript is a commentary on the treatise Al-Tuffāḥa fi ‘ilm al-Misāḥa (The apple in the science of measurement), which was written at the beginning of the 12th century by the mathematician Aḥmad ibn Muḥammad al-Ašh‘ari. The study of measures and measurement techniques (‘ilm al-misāha) was of great interest to Arabic mathematicians during the Middle Ages, both from theoretical and practical points of view. The ability to calculate the dimensions of landholdings was extremely important when it came to determining the correct amounts for inheritances and to calculating taxes ...
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Library of Congress
The Compendious Book on Calculation by Completion and Balancing
Born into a Persian family in Khuwarizm (present-day Xorazm Province, Uzbekistan), Muhammad ibn Musa al-Khwarizmi (also known by the Latin form of his name, Algoritmi, circa 780–850 AD, 164–236 AH) was a Muslim mathematician, astronomer, and geographer, and a scholar in the famed House of Wisdom in Baghdad. Al-Khwarazmi wrote Kitab al-Jabr wa-l-Muqabala (The compendious book on calculation by completion and balancing) around 830 AD, with the encouragement of Caliph Al-Maamoun, the reigning Abbasid caliph of Baghdad in 813–33 AD. It is meant to be a useful ...
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Bibliotheca Alexandrina
The Plateau of Herveo, Ruiz, Tolima, Santa Isabel, and Great Crater, Province of Córdova
This watercolor by Henry Price (1819–63) depicts a plateau and volcanic mountains, with Nevado del Ruiz, also known as the Mesa de Herveo, on the right, and Tolima and Santa Isabel seen in the distance. Men in colorful ponchos are surveying the area. Price labels the scene as located in the province of Córdova; other sources identify it as in the province of Mariquita, about 130 kilometers west of Bogotá. Price was a British painter and musician who was one of the draftsmen of the Comisión Corográfica (Chorographic Commission ...
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National Library of Colombia
A Guide to Geometry, Surveying, the Launching of Missiles, and the Planting of Mines
Hadiyat Al-Muhtadi fil Al-Handassa (A guide to geometry, surveying, the launching of missiles, and the planting of mines) is a technical manual on geometry and surveying, as well as on the motion of projectiles and the construction of missiles. The pages have a number of tables and illustrations set in the text area, and the book has many diagrams and drawings in its wide margins. The work consists of an introduction, two chapters, and a conclusion. The author describes the first chapter as being on the figures of plane geometry ...
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Qatar National Library