Langton.
I have had a great struggle with Buckthorn, & most unfortunately, I went over rather too late as it was a little past; I have finished very accurate measurements of the males, & have the females in spirits while my microscope is being done up; I think it must be only some sort of variation, but I should like you to see the measurements some time.2
Your affect son | W. E. Darwin
Please cite as “DCP-LETT-5136F,” in Ɛpsilon: The Charles Darwin Collection accessed on