"DOUBLE-BARRELLED BRAINS."
[TO THE EDITOR OF THE "SPBOTATOR.1 noticed in a recent issue of the Spectator an article in- reference to Dr. Brown-Sequard's theory of the construction of the brain, which you designated as "double-barrelled brains." I heard Dr. Brown-Sequard lecture on this subject in Boston about a year ago, and was then struck by the coincidence of his theory with one I had met with previously in a volume I had found in the Athenmum Library. This was a book entitled "The Duality of Mind," written by A. L. Wigan, M.D., published in London in 1844 by Longmans and Co. The theory is discussed by this author in reference to its bearing upon certain forms of insanity. To my mind it seemed the same with that of the more distinguished medical authority.
It is most likely that the theory is original to both of these physiologists alike, but it is interesting to know that it is not-the conception of only a single mind, and it is no more than justice that some of the credit which it may receive from the distinguished professor of the present day should be reflected back upon the probably more obscure practitioner of the former generation.— I am, Sir, &a.
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