117/193 It is exactly like my barnacles; but for my particular purpose, most unfortunately, both Kolreuter and Gartner have worked chiefly on A.vulgaris and canadensis and atro-purpurea, and these are just the species that you seem not to have studied. N.B.Why do you not let me buy the Indian Flora? What you say under your remarks on Lepidodendron seems just the case that I want, to give some sort of evidence of what we both believe in, viz. how groups came to be anomalous or aberrant; and I think some sort of proof is required, for I do not believe very many naturalists would at all admit our view. |