When Voltaire sat down to write a book on Epic Poetry, he dedicated his first chapter to "Differences of Taste in Nations." A critic of to-day might well find it necessary, on the threshold of a general inquiry, to expatiate on "Differences of Taste in Generations." Changes of standard in the arts are always taking place, but it is only with advancing years, perhaps, that we begin to be embarrassed by the recurrence of them. In early youth we fight for the new forms of art, for the new æsthetic shibboleths, and in that happy ardour of battle we have no time or inclination to regret the demigods whom we dispossess. But the years glide on, and, behold! one morning, we wake up to find our own predilections treated with contempt, and the objects of our own idolatry consigned to the waste-paper basket. Then the matter becomes serious, and we must either go on struggling for a cause inevitably lost, or we must give up the whole matter in indifference. This week I read, over the signature of a very clever and very popular literary character of our day, the remark that Wordsworth's was "a genteel mind of the third rank." I put down the newspaper in which this airy dictum was printed, and, for the first time, I was glad that poor Mr. Matthew Arnold was no longer with us. But, of course, the evolutions of taste must go on, whether they hurt the living and the dead, or no.