Dear M^r Darwin

I enclose a pod from an old kind of garden pea called “Woodford’s Marrow.” The colour of the normal seed is of a very peculiar and invariable blue. This pod was fertilized by the pollen of an equally constant white kind, to wit, “Dickson’s favorite” a selection from the Auvergne.²

You will see that it contains two pure white peas, a thing which the old Woodford never was guilty of in its life.— With the exception of my Matthiola this is the only instance I have yet met with, but I doubt not but that we used our eyes more would turn up.³ Please return the specimen soon, as I sh^d like to produce it before our scientific committee⁴

Has anything of the kind been noticed in the analogue eggs.? I had the satisfaction last summer of smashing a genus which I never believed in, viz: Elisena which I crossed with Ismene. Flower exactly intermediate.—⁵

What is Species, and what is Genus?

and Echo answers

What is Truth?⁶

yrs very truly | R Trevor Clarke