Books in Astronomy (sorted by popularity)
- Recreations in Astronomy Henry White Warren 120 downloads
- Half-hours with the Telescope Richard A. Proctor 114 downloads
- A Popular History of Astronomy During the Nineteenth Century Agnes M. Clerke 113 downloads
- Watchers of the Sky Alfred Noyes 111 downloads
- The Martyrs of Science, or, The lives of Galileo, Tycho Brahe, and Kepler David Brewster 100 downloads
- The gradual acceptance of the Copernican theory of the universe Dorothy Stimson 92 downloads
- Side-Lights on Astronomy and Kindred Fields of Popular Science Simon Newcomb 82 downloads
- The Future of Astronomy Edward C. Pickering 80 downloads
- Le Système Solaire se mouvant (French) August Tischner 73 downloads
- Astronomical Instruments and Accessories William Gaertner and Company 66 downloads
- Scientific Papers by Sir George Howard Darwin. Volume V. Supplementary Volume Sir George Howard Darwin 55 downloads
- The Tides and Kindred Phenomena in the Solar System Sir George Howard Darwin 52 downloads
- Publications of the Astronomical Society of the Pacific, Volume 1 Astronomical Society of the Pacific 35 downloads