Letter and/or further information available at https://www.darwinproject.ac.uk/letter/?docId=letters/DCP-LETT-42.xml.
Also published in The Correspondence of Charles Darwin, vol. 1.
Please cite as “DCP-LETT-42,” in Ɛpsilon: The Charles Darwin Collection accessed on 26 April 2024, https://epsilon.ac.uk/view/dcp-data/letters/DCP-LETT-42