Berlin: Ferd. Dümmler (Harrwitz & Gossman), 1865.
Hardcover. First edition in English. Translated by the author from the Second German edition. Contemporary half-morocco and marbled papercovered boards. Some rubbing and edgewear to the boards, very good. Tipped to the title page is a small slip of pink paper with the inscription: "Professor Peck with much love from the author." Brünnow was the first foreigner to become director of an American observatory, serving as director of Detroit Observatory from 1854 to 1863. Peck was almost certainly William Guy Peck, author of *Practical Treatise on the Differential and Integral Calculus: With Some of Its Applications to Mechanics and Astronomy* (1870).