Ernst Haeckel (1834-1919) German zoologist and evolutionist. Recapitulation theory 'Ontology recapitulates phylogeny'. Haeckel in 1899. Halftone.

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Keywords: 1834-1919, 1899., archival, archive, ernst, evolution, evolutionist., german, haeckel, halftone., historical, history, ontology, phylogeny., recapitulates, recapitulation, scientist, theory, zoologist, zoology