To T. H. Huxley   [after 16 February 1863]1

Do not forget, whenever you can screw out time— rudiment of 6th toe on [front] or Hind foot of Batrachian.—2

incomplete

1
The date is established by the relationship between this letter and the letter to T. H. Huxley, 16 February [1863]. It may have been the postscript to that letter.

Please cite as “DCP-LETT-3992F,” in Ɛpsilon: The Charles Darwin Collection accessed on 5 June 2025, https://epsilon.ac.uk/view/dcp-data/letters/DCP-LETT-3992F