sentences:  The other campus buildings to survive the event were the President's Mansion (1841), Gorgas House (1829), the Little Round House (1860), and a few faculty residences.Though the observatory and instruments had been damaged in the raid, the telescopes and observatory were still usable for teaching purposes until the 1890s.A new observatory was built in Gallalee Hall in 1949 and a new telescope was installed by 1950.