PAL

Ptolemaeus Arabus et Latinus

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Pseudo-Ptolemy, Liber de compositione universalis astrolabii

Oxford, BL, Digby 40 · 4v

Facsimile

aszmut exaret. Hoc igitur modo, utriusque medietatis aszmut in ipsa componuntur componuntur] componentur F tabula. Et hec est huius rei descriptio.

⟨4⟩ De compositione assavaka Title om. F

Assavaka asztorleb arabice, quod latine rete astrolabii interpretatur, sic faciendum est. Primum igitur omnium tabula ex eramine rotundissime composita et undique in quantum artifex plus plus] F; puls O potuerit bene polita fiat. Sitque eius latitudo quantum umbonis in tabula matre matre] F; mate O prius fixi exposcit capacitas, capacitas] F; expacitas O eius vero crassitudo umbonis crassitudini equabiliter equabiliter] equaliter F respondeat. His ita compositis, illa infra matrem tabulam ita quod nec huc neque illuc volui possit firmiter includatur, includatur] includitur F ac deinde per partes tetragonas equissime partiatur, ita