Books in Astronomy (sorted by popularity)
- Recreations in Astronomy Henry White Warren 124 downloads
- Watchers of the Sky Alfred Noyes 118 downloads
- Half-hours with the Telescope Richard A. Proctor 116 downloads
- Time and Tide: A Romance of the Moon Robert S. Ball 114 downloads
- Lectures on Stellar Statistics C. V. L. Charlier 110 downloads
- The gradual acceptance of the Copernican theory of the universe Dorothy Stimson 100 downloads
- Le Système Solaire se mouvant (French) August Tischner 96 downloads
- Side-Lights on Astronomy and Kindred Fields of Popular Science Simon Newcomb 87 downloads
- The Future of Astronomy Edward C. Pickering 84 downloads
- Astronomical Instruments and Accessories William Gaertner and Company 73 downloads
- Scientific Papers by Sir George Howard Darwin. Volume V. Supplementary Volume Sir George Howard Darwin 70 downloads
- The Tides and Kindred Phenomena in the Solar System Sir George Howard Darwin 66 downloads
- Publications of the Astronomical Society of the Pacific, Volume 1 Astronomical Society of the Pacific 33 downloads