Translation by Joannes Hispalensis of the author's Kitāb aḥkām sinī al-mawālīd and other writings, based in great part on al-Kindī. cf. Sarton. An introd. to the hist. of science. Baltimore [1927] v. 1, p. 568; and Enzyk. d. Islām., Ed. by Johannes Angelus., Imprint from colophon., S ...