De radiis visvs et lvcis in vitris perspectivis et iride tractatus (1611)
De Dominis, Marco Antonio, 1560-1624 · Venetiis : Apud Thomam Baglionum · leaf 30
nde ficut eft vera hec propofito , Duz linez quz fuü- pet tertia linea ex vno püclo incidunt ad «quales angulos, illz funt inter fe equa- les, & à perpendicularl. eque diftant ; ita valeté conuerso 5 linez qua ab ea- dem linea diícedentes füb zqualitate angulorum , ad vnum punctum coeunt , ille…
Optics -- Early works to 1800
Internet Archive · Fisher - University of Toronto · Public domain (published before 1931). Free to use for anything.
