Tres epistolae de macvlis solaribvs : scriptae ad Marcvm Velservm ... Cum obseruationum iconismis (1612)

Scheiner, Christoph, 1575-1650 · Avgvstae Vindelicorvm : Ad insigne Pinus · leaf 19

Sunspots · Astronomy -- Early works to 1800

Internet Archive · Fisher - University of Toronto · Public domain (published before 1931). Free to use for anything.

More like this