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Wallace on biogeography

Extract

Letter from Wallace to fellow insect collector Henry Walter Bates describing the geographical distribution of animals and rivers as geographical barriers, dated December 1861. (extract)

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Wallace Letters Online

Letter to Alfred Russel Wallace from the Royal Society, about his Darwin Medal award

View high resolution scans and transcripts of Alfred Russel Wallace's correspondence, including all surviving letters between him and Charles Darwin.

Explore Wallace's correspondence