Title: Ioannis Kepleri Sae. Cae. Mtis. mathematici Dioptrice, seu, Demonstratio eorum quae visui & visibilibus propter conspicilla non ita pridem inventa accidunt
Subjects: Early works to 1800, Optics, Telescopes
People: Galileo Galilei (1564-1642), Jean Pena (1528-1558)