information:filtering, linguistic:translation
Conics

Apollonius was a prolific geometer, turning out a large number of works. Only one survives, Conics. Of its eight books, only the first four persist as untranslated original texts of Apollonius. Books 5-7 are only available in an Arabic translation by Thābit ibn Qurra commissioned by the Banū Mūsā; the original Greek is lost. The status of Book 8 is unknown. A first draft existed, but whether the final draft was ever produced is not known. A "reconstruction" of it by Edmond Halley exists in Latin, but there is no way to know how much of it, if any, is verisimilar to Apollonius.

The Greek text of Conics uses the Euclidean arrangement of definitions, figures and their parts; i.e., the “givens,” followed by propositions “to be proved.” Books I-VII present 387 propositions. This type of arrangement can be seen in any modern geometry textbook of the traditional subject matter. As in any course of mathematics, the material is very dense and consideration of it, necessarily slow. Apollonius had a plan for each book, which is partly described in the Prefaces. The headings, or pointers to the plan, are somewhat in deficit, Apollonius having depended more on the logical flow of the topics.