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x-archive-meta-curation: [curator]biodiversitylibrary.org[/curator][date]20110222044356[/date][state]approved[/state]
x-archive-meta-date: 1856
x-archive-meta-description: From the library of Charles Darwin
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x-archive-meta-publisher: London John Van Voorst
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x-archive-meta-title: On the variation of species
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