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People featured in the German and Austrian photograph album
Summary
Biographical details of people from the Habsburg Empire that appeared in the album of German and Austrian scientists sent to Darwin on 12 February 1877. We are grateful to Johannes Mattes for providing these details and for permission to make his…
The origin of language
Summary
Darwin started thinking about the origin of language in the late 1830s. The subject formed part of his wide-ranging speculations about the transmutation of species. In his private notebooks, he reflected on the communicative powers of animals, their…