Columbia subject headings:
Kepler, Johannes, 1571-1630.
Optics--History--17th century.
Vision--Philosophy--History--17th century.
Harvard subject headings:
Kepler, Johannes, 1571-1630
Optics--History--17th century.
Vision--Philosophy--History--17th century.
Princeton subject headings:
Kepler, Johannes, 1571-1630.
Optics--History--17th century.
Vision--Philosophy--History--17th century.