| 11. | GETTING THERE : Cinchona is about 20 miles ( 32 kilometers ) from Kingston.
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| 12. | Espejo divided his cinchona study into four parts.
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| 13. | Alexander von Humboldt cited Ruiz when he published his own treatise on cinchona in 1821.
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| 14. | He also conducted research of cinchona extract and rhubarb as possible treatments for cardiac irregularities.
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| 15. | Vinson is also credited for being the first scientist to successively cultivate cinchona on R�union.
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| 16. | There is an 1849 French etching depicting the harvesting of bark from cinchona trees in Bolivia.
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| 17. | It is a stereoisomer of quinine, originally derived from the bark of the cinchona tree.
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| 18. | Still, the pamphlet is noteworthy as being the first Italian publication that mentions the cinchona.
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| 19. | Quinine is the active cinchona tree.
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| 20. | Phase-transfer catalysis of nucleophilic epoxidation is also possible using cinchona-based alkaloid catalysts.
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