Much interested in MTM’s lecture at Royal Institution ["On the relation between the abnormal and normal formations in plants", Notes Proc. R. Inst. G. B. 3 (1860): 223–7].
Asks for information about crossing of varieties of peas. Describes his own experimental results: "the offspring out of the same pod, instead of being intermediate, was very nearly like the two pure parents; yet in one, there was a trace of the cross & the next generation showed still more plainly their mongrel origins".