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.