Wilhelm Bölsche
Wilhelm Bölsche (2 January 1861 – 31 August 1939) was a German author, editor and publicist. He was among the early promoters of nature conservation and committed to popularizing science. Provided by Wikipedia
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Published: 1894
Superior document: Entwicklungsgeschichte der Natur 1
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Published: 1896
Superior document: Entwicklungsgeschichte der Natur 2