| 1. | Ransom established the Mount Diablo Base and Meridian lines in 1851.
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| 2. | Tonga lies just east of the geographical 180th meridian line.
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| 3. | Somersham lies on the Greenwich meridian line.
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| 4. | Norway and the Soviet Union, later Russia, disagreed regarding meridian line be used.
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| 5. | The northern border travels east and through Hardin, Montana, to the 107th meridian line.
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| 6. | The longer the meridian line, the more accurately the observer can calculate the length of the year.
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| 7. | Babinet's cartography work includes homalographic projections where the parallels are rectilinear and meridian lines are elliptical.
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| 8. | The column supports a marble orb with intersecting double meridian lines, made from raised strips of metal.
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| 9. | The southern border is from the 107th meridian line west to the east bank of the Big Horn River.
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| 10. | The path on the floor was known as a meridian line, like the north-south meridians of geographers.
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