London: J. Nourse, 1769. First edition. With sixteen folding engraved plates (plate 11 misbound). Complete with the errata leaf and publisher’s advertisements. Joints, cornerslightly worn. A very good copy. Contemporary English diced Russia, gilt leaf border, gilt flat spine, tooled in compartments, all edges gilt. English Royal Arms of the Order of the Garter in gilt in the center of both covers, all edges gilt. Octavo. x, ii, 368,  pp. Item #14672
Emerson (1701-1782), who is well known for his mathematical works, gives a historical overview of “the earliest science.” This is a comprehensive account of the systems of the world, the motion of the planets, and their periods. Emerson contemplates solving some of the principal astronomical problems by spherical trigonometry and by globes. He discusses the theory of the moon and satellites and the calculation of eclipses, as well as the contributions of Tycho Brahe, Kepler, Galileo, Halley, and Newton.