From Asa Gray to J. D. Hooker   [after 6 July 1867]

Letter and/or further information available at https://www.darwinproject.ac.uk/letter/?docId=letters/DCP-LETT-5580.xml.

Also published in The Correspondence of Charles Darwin, vol. 15.

Please cite as “DCP-LETT-5580,” in Ɛpsilon: The Charles Darwin Collection accessed on 9 May 2024, https://epsilon.ac.uk/view/dcp-data/letters/DCP-LETT-5580