Extract.

"I see, in Macmillan's Magazine, you are arranged with Lyell, Hooker, and others in the list of those who have espoused Darwin's views. I was not aware you had become a convert to his theory, and can hardly suppose you have accepted it as a whole, though, like myself, you may go the length of imagining that many of the smaller groups, both of animals and plants, may at some remote period have had a common parentage. I do not, with some, say that the whole of his theory cannot be true—but, that it is very far from proved; and I doubt its ever being possible to prove it."