Savile 15 (Bernard 6561), a large MS in which it is the last treatise.
Peterhouse 86, 15th century. Here we have the Liber introductorius in two parts, then come Nativities, Revolutions, Conjunctions, the 146 considerations, weather prediction, De partibus, and finally tractatus principalis de electionibus.
CU Trinity 1418, 15th century, contains portions of Bonatti’s work (James III, 445).
Other MSS are:
Vienna 2359, 14th century, fols. 1-38, Guido Bonactus de Foro Livii, Liber introductorius ad iudicia stellarum: fols. 39-50, Considerationes super iudiciis ...; fols. 51-52, Introductorium sub breviloquio ad iudicia stellarum; fols. 53-92, Explicit tractatus interrogationum seu questionum; fols. 93-119, Tractatus de electionibus secundum dicta sapientum; fol. 120v, Tabula magnitudinis et parvitatis diei; fols. 121-61, Tractatus super nativitatibus; fols. 162-6, De imbribus et de aeris mutationibus; fols. 167-200, De revolutione annorum et mundi; fols. 201-210, Tractatus proiectionum quarumlibet partium.
Vienna 3124, 15th century, some scattered parts from it.
Wolfenbüttel 2734, 14-15th century, in several hands, Liber introductorias ad iudicia stellarum ... editus a Guidone Bonacco de Forlivio....
Amplon. Folio 381.
CLM 59, 15th century, contains some of its treatises.
Arsenal 1129, 15th century, fol. 207, Liber astronomicus.