Copy of the Arabic translation of Euclid's Elements
by Nasir ad Din at Tusi

Columbia University Library MS Or 64, Uṣūl al-handasah wa-al-ḥisāb / Uqlīdis, اصول الهندسة والحساب. في بيان المربعات . Copy completed in Ramaḍān 1047 A.H. (Jan./Feb. 1638) p 9, figure I.2 et variantes p 23, figure I.22 p 44, figure I.44 p 46, figure I.47 p 64, figure II.5 p 66, figure II.7 p 74, figure II.14 p 98, figure III.35 p 99, figures III.36 et 37 p 100, figure IV.1 p 101, figures IV.2 et 3 p 103, figure IV.4 p 108, figures IV.11 et 12 p 144, figure VI.20 p 148, figures VI.27 et 28 p 149, figure VI.29 p 263, figures XI.39 et XII.1 p 294, figures XIII.15 et XIII.14 p 296, figure XIII.16 p 297, figure XIII.17 p 300, figure XIII.18 translations of Euclid's Elements by Nasir ad Din at Tusi Columbia University Library Σ © α