JOHNSON’S OPINION OF HIS ROUGHNESS.—While we were upon the road, I had the resolution to ask Johnson whether he thought that the roughness of his manner had been an advantage or not, and if he would not have done more good if he had been more gentle. I proceeded to answer myself thus: “Perhaps it has been of advantage, as it has given weight to what you said: you could not, perhaps, have talked with such authority without it.” _Johnson_: “No, sir; I have done more good as I am. Obscenity and impiety have always been repressed in my company.” _Boswell_: “True, sir; and that is more than can be said of every bishop. Greater liberties have been taken in the presence of a bishop, though a very good man, from his being milder, and therefore not commanding such awe. Yet, sir, many people who might have been benefited by your conversation have been frightened away. A worthy friend of ours has told me that he has often been afraid to talk to you.” _Johnson_: “Sir, he need not have been afraid, if he had anything rational to say. If he had not, it was better he did not talk.”—_Boswell._ THE COMET THAT CAME BUT ONCE. By E. W. MAUNDER, F.R.A.S. Not quite a year ago the “Threatening Comet,” which some too-imaginative writers foretold would return in fifteen years, and occasion the entire destruction of our earth, by rushing into the sun, and exciting it to a terrible degree of heat was foretold. How little reason there was to fear such a catastrophe! We never expected that, so far from having fifteen years to wait before the truth or error of the prediction was demonstrated, in less than six months a glorious stranger would present himself to our gaze, and reveal that, in one way or another, the dismal prophecy had been wrong. The message which the wonderful comet, that was so impressive an object in the morning sky of last October, had to convey has been interpreted in various senses. Perhaps the most probable is, that he and his bright predecessors of 1880 and 1843, which had been supposed to be one and the same object, were not really so, but only members of the same family. If so, then the very groundwork of the theory, on which the return in 1897 was foretold, would be cut away, and in its place a whole vista of marvellous possibilities would be opened out to us. But our present purpose is not to dwell on these, nor to enlarge on the history, past or future, of any comet which from time to time has returned, or may return, to our skies, but to read the lesson conveyed in the marvellous fact that there are comets which visit us _but once_.