Arabic manuscript on paper, 536ff. plus one flyleaf, each folio with 21ll. fine black naskh, divisions and subheadings in red ink, diagrams, various astrological charts and a drawing of the Nile river, all outlined in red, gold and polychrome rules, each risala with a gold and polychrome illuminated heading with white thuluth reserved against a gold cartouche and a colophon, the margins plain, catchwords, opening with a later fihrist, a shamsa with dense calligraphy, the following bifolio with t