To Hyde Clarke   [29 December 1877]1

… If you finally succeed in proving that all languages have been developed from a common root, you will indeed have effected a most valuable piece of work …2

The date is given in the sale catalogue; the address is given as ‘Down’.
The original letter is complete and according to the sale catalogue is one page long.

Please cite as “DCP-LETT-11295,” in Ɛpsilon: The Charles Darwin Collection accessed on 5 June 2025, https://epsilon.ac.uk/view/dcp-data/letters/DCP-LETT-11295