| 11. | It used a mixture of graphite, sulphur, and antimony.
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| 12. | He used a sulphur globe that could be rubbed by hand.
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| 13. | A post office named Sulphur was established October 2, 1895.
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| 14. | Athletics are a major piece of the school culture in Sulphur.
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| 15. | York Springs'previous names were York Sulphur Springs and Petersburg.
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| 16. | The ammonium and sulphur compounds were especially damaging to the environment.
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| 17. | Sulphur dioxide can be readily measured with relatively simple laboratory equipment.
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| 18. | However, various methods such as chemical scarification and sulphur immersion.
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| 19. | It comes from the sulphur spots which have coloured its sides.
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| 20. | This bridge spans the Sulphur Fork Creek and is well preserved.
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