A manual of spherical and practical astronomy, embracing the general problems of spherical astronomy, the special applications to nautical astronomy, and the theory and use of fixed and portable astronomical instruments, with an appendix on the method of least squares
William Chauvenet's two-volume manual of spherical and practical astronomy, issued by J. B. Lippincott of Philadelphia in 1891 for naval officers, surveyors and observatory students. The plates are fine-line engineering elevations of instruments — transit telescopes on masonry piers, a mounted equatorial in a spoked circle, tripod stands on castors, with lettered reference keys — usable as thin-stroke line diagrams, instrument silhouettes and technical-drawing texture.

