Letter | Published:

The Diffusion of Species


I AM specially interested in the Duke of Argyll's letter on the above subject (p. 462), being a resident during nearly half the year in the most southern of the Hebrides. His Grace is so competent a naturalist, and so accurate an observer, that I assume at once he had evidence which satisfied himself that an adder swam from Mull to Iona. Still I must be pardoned if I say that your readers have not been supplied with the proofs which have satisfied his Grace. A boy and girl in Iona, who, I presume, had never seen an adder in their lives, killed a creature in the sea there. Might it not have been an eel?

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