Paris: Mallet-Bachelier, 1856. Second edition. Original Wraps. 8vo (22.5 X 14 cm.). 2nd edition. 2 volumes, Original paper wraps. Collation: Vol. 1 [I-v] vi-xl, 558 [2 - catalog] p.; Vol. 2 [I-v] vi-xv, 568 p. Uncut and unopened. The first volume has original printed wrappers with back cover containing advertisement. Second volume in plan green wrappers. There is chipping and loss to wrappers on both volumes, more so to the second. Internal condition very good with only minor spotting and foxing. Very Good. Item #0000232
This second edition has been augmented from the first published in 1846. This is a very scarce copy in original wrappers. There is a 21 page history of astronomy and celestial mechanics in the Introduction. G de Pontécoulant was a French astronomer with a keen interest in celestial mechanics of which this is his major work and last edtion published. His research resulted in a detail analysis of craters on the moon. In fact, there are a number of lunar craters, which bear his name.