page_title: Joshua Alder
hierarchical_section_title: Joshua Alder
caption_attribution_description: English: Sketch of Joshua Alder from "Men of mark 'twixt Tyne and Tweed" by Richard Welford, 1895.
context_page_description: Joshua Alder was a British cheesemonger and amateur zoologist and malacologist. As such, he specialized in the Tunicata, and in gastropods.
  He was a member of the Natural History Society of Northumberland and Durham, and an early member of the Literary and Philosophical Society, alongside Joseph Swan and Robert Stephenson. He corresponded with Charles Darwin.
  His drawings are in the collections of the Great North Museum and the British Museum.
context_section_description: Joshua Alder  (7 April 1792 – 21 January 1867) was a British cheesemonger and amateur zoologist and malacologist. As such, he specialized in the Tunicata, and in gastropods.
  He was a member of the Natural History Society of Northumberland and Durham, and an early member of the Literary and Philosophical Society, alongside Joseph Swan and Robert Stephenson. He corresponded with Charles Darwin.
  His drawings are in the collections of the Great North Museum and the British Museum.
caption: Sketch of Alder from "Men of mark 'twixt Tyne and Tweed" by Richard Welford, 1895
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