WITNESS

al-Tadhkirah fī ʿilm al-hayʾah _Paris_Bibliothèque nationale (Paris)_Manuscrits-Orient Arabe_2509

References

Ragep, F. Jamil. 1993. Nasīr al‐Dīn al‐Ṭūsī’s Memoir on Astronomy (al‐Tadhkira Fī ʿilm al‐hayʾa). 2 vol. New York: Springer‐Verlag.

1:81, no. 34.

de Vaux, Bernard. 1893. “Les sphères célestes Seond Nasīr Eddin-Attūsī”. In Recherches Sur l’histoire De l’astronomie Ancienne, Appendix VI, ed. Paul Tannery, 337-61. Paris: Gauthier-Villars.

This witness was used for the translation of II.11.