[ASTRONOMY]. A group of 6 volumes, including: HOUGH, Franklin B. Results of a Series of Meteorological Observations. Albany: Weed, Parsons, & Company, 1855. 4to. Fold?out map. Contemporary gilt stamped cloth with raised bands (soiling and rubbing to extremes). ?? LAPLACE, Pierre-Simon. Mecanique Celeste Vol.?IV. Boston: Hilliard, Gray, Little, & Wilkins, 1832. Translated by Nathaniel Bowditch. Large 4to. Original boards (soiling to boards, losses to spine, notations, boards detached on both sides). ?? LAPLACE, Pierre-Simon. Mecanique Celeste Vol. IV. Translated by Nathaniel Bowditch. Boston: Charles C. Little and James Brown, 1839. Large 4to. Frontispiece. Original boards (soiling to boards, losses to spine, notations throughout, front board detached). ?? Overall condition poor to fair.