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 In the third I had two articles, one on a minor subject, the other on the Reciprocity principle in commerce, à propos of a celebrated diplomatic correspondence between Canning and Gallatin. These writings were no longer mere reproductions and applications of the doctrines I had been taught; they were original thinking, as far as that name can be applied to old ideas in new forms and connexions: and I do not exceed the truth in saying that there was a maturity, and a well-digested character about them, which there had not been in any of my previous performances. In execution, therefore, they were not at all juvenile; but their subjects have either gone by, or have been so much better treated since, that they are entirely superseded, and should remain buried in the same oblivion with my contributions to the first dynasty of the Westminster Review.

While thus engaged in writing for the public, I did not neglect other modes of self-cultivation. It was at this time that I learnt German; beginning it on the Hamiltonian method, for which purpose I and several of my companions formed a class. For several years from this period, our social studies assumed a shape which contributed very much to my mental progress. The idea occurred to us of carrying on, by reading and conversation, a joint study of several of the branches of science which we wished to be masters of. We assembled to the number of a dozen or more. Mr. Grote lent a room