Note 2679 — Chapter XXVIII · ARABIC OCCULT SCIENCE OF THE NINTH CENTURY

Harleian 13, fol. 118-Thebit de motu octave spere; fol. 120v-Liber Thebith ben Corath de his qui indigent expositione antequam legitur Almagestum; 123-Liber Thebit de ymaginatione spere et circulorum eius diversorum; 124v-Liber Thebith de quantitatibus stellarum et planetarum.

Also in Harl. 3647, #11-14; Tanner 192, 14th century, fol. 103-; BN 7195, 14th century, #12-15; Magliabech. XI-117, 14th century; CUL 1767 (Ii. III, 3) 1276 A. D., fols. 86-96; and many other MSS.