ATS Links to the Past Allegheny ObservatoryPittsburgh, PA History of Allegheny ObservatoryAllegheny Obs. Telescopes Hopkins Observatory,Williams CollegeWilliamstown, MA History of Hopkins Observatory from 1832A Pictorial History of Hopkins Observatory Lick ObservatoryMount Hamilton, CA Instruments that are or were on Mount Hamilton Instruments that are or were on Mount Hamilton Roper MountainScience CenterGreenville, SC The Charles E. Daniel Observatory Halsted Observatory, Princeton
