From England, with some revision for Americans, comes this already successful popular book on astronomy. It differs from the general run in that the reader is introduced to the subject as though the whole historical process had been foreshortened so that his knowledge is gained as it was through the centuries,- first through what the naked eye can contribute (with the conclusions reached through generations of searching); then with the simplest of instruments, and then the more complex, as telescopes and spectroscopes widened the range of vision. It forms a continuous story up to Part II, when the individual heavenly bodies (the sun, the moon and lunar system, the planets, etc.) are discussed, known facts presented (with as little dependence as possible on abstractions of figures), and hypotheses presented with brief analysis. 20 photographs and numerous diagrams illustrate the text, which even a neophyte can understand.