From W. E. Darwin   1 January [1881]

Letter and/or further information available at https://www.darwinproject.ac.uk/letter/?docId=letters/DCP-LETT-12392G.xml.

Also published in The Correspondence of Charles Darwin, vol. 29.

Please cite as “DCP-LETT-12392G,” in Ɛpsilon: The Charles Darwin Collection accessed on 24 April 2024, https://epsilon.ac.uk/view/dcp-data/letters/DCP-LETT-12392G