In a review on his book on Logic, having detected, from "various internal symptoms of origin," the style and manner of a personal friend of his own, he wrote to the culprit in this characteristic form, "very many thanks for the notice. It may do good with some readers who don't know the corrupt motives by which it was prompted: and it strikes me as being exceedingly well and dexterously executed. I am quite sorry to think how much trouble it must have cost you to pierce into the bowels of the dry and dark territory, so far as the points you have been able to reach. I am afraid also that you had to gutta-percha your conscience a little, before it would stretch to some of your allegations, both about the work and about the science. I see already so much that I could myself amend--not in respect of doctrine, but in the manner of exposition--as to make me regret that I am not in a place where the classes of students are large enough to take off an edition, and so to give me by and by the chance of re-writing the book. Yet it is satisfactory to me to have got clearly the start of the publication of Hamilton's Lectures, and so to anticipate--for some of the points on which it will certainly be found that I have taken up ground of my own--the attention of _some_ of the few men who have written on the science. Any of them who, having already looked into my book, shall attempt to master Hamilton's system when it appears in his own statement of it, are sure to find, if I do not greatly mistake, that I have raised several problems, the discussion of which will require that my suggestions be considered independently of Hamilton's, and my little bits of theory either accepted or refuted. I dare say I told you that early in the winter I had very satisfactory letters from Germany, and you heard that the book was kindly taken by some of the Englishmen it was sent to, and set on tooth and nail, though very amicably, by," &c.