William F. Denning (1848 1931) was a British astronomer famous for his planetary observations and meteor studies. Elected president of the Liverpool Astronomical Society in 1887, he wrote a series of articles on telescopes for the society's journal, which were brought together and republished in 1891 under the title Telescopic Work for Starlight Evenings. Intended as a contribution to popular astronomy, this book provides a varied introduction to telescopes and their usage. The opening essay traces the development of the telescope from antiquity, through Galileo and Newton's contributions in...