1. The Discoveries and Opinions of Galileo;Galilei,1957
2. A Compleat system of opticks;Smith,1738
3. Systema Saturnia, sive de causis mirandorum SATVRNI Phaenomenôn Et Comiti ejus;Huygens;PLANETO NOVO,1659
4. Reprinted with parallel French translation in Huygens;Huygens;Oeuvres Complétes,1925
5. A History of the Telescope;King,1955