Cosmographicus liber Petri Apiani mathematici, (1533)
Apian, Peter, 1495-1552, Gemma, Frisius, 1508-1555, Gemma, Frisius, 1508-1555. Libellus de locorum describendorum ratione · [Antwerp] : Væneunt in pingui Gallini per Arnoldum Birckman. · leaf 25
s,A ccipe pro hora certa folisaltitudiné, vtan te pramiffà docet. Deinde perpendiculis recte pendentibus,volue ac rcuolue organum, donec interfectio horz íam accept, & linez parale lclz,ex gradu folis, in quo eft fol die oblato, duétz, fit directe fub pere | pendiculo trígoni.Et index rotulz, qui… … ris ftella maris, ab Aftrologis vero Alrukaba dicitur: eiufmodi igitur | fiellarumfitum & effigiem (qua Vifam feu plauftrum figurant) vides hic Le&orín figura fequenti. Ibidem enim linea albis fciffuris produe £a indicat ftellam polarem. Non qued polus fit, fed ftella polo mundi proxima. ; B. - ji:…
Cosmography · Geography
Internet Archive · John Carter Brown Library · Public domain (published before 1931). Free to use for anything.