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The Determination of the Coordinates of Positions for the Correction of Distances Between Cities

This translation from the Arabic of the Tahdīd is based on Dr. P. Boljakoff's edition of the Istanbul Manuscript, Sultan Fatih No. 3386, published in 1962 by the Cultural Department of the Arab League in Cairo. The text deals with geographical-mathematical subjects, the determination of latitude, the obliquity of the ecliptic, the measurement of time, lunar eclipses, longitudinal differences, and methods for the determination of the Qibla, the direction of prayer for Muslims. Please note that this book has signs of wear and aging.