--Oh, you need net tell me that Messrs. A. and B. are the most gracious, unassuming people in the world, and yet preeminent in the ranges of science I am referring to. I know that as well as you. But mark this which I am going to say once for all: If I had not force enough to project a principle full in the face of the half dozen most obvious facts which seem to contradict it, I would think only in single file from this day forward. A rash man, once visiting a certain noted institution at South Boston, ventured to express the sentiment, that man is a rational being. An old woman who was an attendant in the Idiot School contradicted the statement, and appealed to the facts before the speaker to disprove it. The rash man stuck to his hasty generalization, notwithstanding. [--It is my desire to be useful to those with whom I am associated in my daily relations. I not unfrequently practise the divine art of music in company with our landlady's daughter, who, as I mentioned before, is the owner of an accordion. Having myself a well-marked barytone voice of more than half an octave in compass, I sometimes add my vocal powers to her execution of "Thou, thou reign'st in this bosom." not, however, unless her mother or some other discreet female is present, to prevent misinterpretation or remark. I have also taken a good deal of interest in Benjamin Franklin, before referred to, sometimes called B. F., or more frequently Frank, in imitation of that felicitous abbreviation, combining dignity and convenience, adopted by some of his betters. My acquaintance with the French language is very imperfect, I having never studied it anywhere but in Paris, which is awkward, as B. F. devotes himself to it with the peculiar advantage of an Alsacian teacher. The boy, I think, is doing well, between us, notwithstanding. The following is an UNCORRECTED French exercise, written by this young gentleman. His mother thinks it very creditable to his abilities; though, being unacquainted with the French language, her judgment cannot be considered final. LE RAT DIES SALONS A LECTURE.