ATS Links to the PastAllegheny ObservatoryPittsburgh, PAHistory of Allegheny ObservatoryAllegheny Obs. TelescopesHopkins Observatory,Williams CollegeWilliamstown, MAHistory of Hopkins Observatory from 1832A Pictorial History of Hopkins ObservatoryLick ObservatoryMount Hamilton, CAInstruments that are or were on Mount HamiltonInstruments that are or were on Mount HamiltonRoper MountainScience CenterGreenville, SCThe Charles E. Daniel ObservatoryHalsted Observatory, Princeton
