Two erroneous impressions concerning Verdi's "Aïda" may as well as not be corrected at the beginning of a study of that opera: it was not written to celebrate the completion of the Suez Canal, nor to open the Italian Opera-house at Cairo, though the completion of the canal and the inauguration of the theatre were practically contemporaneous with the conception of the plan which gave the world one of Verdi's finest and also most popular operas. It is more difficult to recall a season in any of the great lyric theatres of the world within the last thirty-five years in which "Aïda" was not given than to enumerate a score of productions with particularly fine singers and imposing mise en scène. With it Verdi ought to have won a large measure of gratitude from singers and impresarios as well as the fortune which it brought him; for though, like all really fine works, it rewards effort and money bestowed upon it with corresponding and proportionate generosity, it does not depend for its effectiveness on extraordinary vocal outfit or scenic apparel. Fairly well sung and acted and respectably dressed, it always wins the sympathies and warms the enthusiasm of an audience the world over. It is seldom thought of as a conventional opera, and yet it is full of conventionalities which do not obtrude themselves simply because there is so much that is individual about its music and its pictures--particularly its pictures. Save for the features of its score which differentiate it from the music of Verdi's other operas and the works of his predecessors and contemporaries, "Aïda" is a companion of all the operas for which Meyerbeer set a model when he wrote his works for the Académie Nationale in Paris--the great pageant operas like "Le Prophète," "Lohengrin," and Goldmark's "Queen of Sheba." With the last it shares one element which brings it into relationship also with a number of much younger and less significant works--operas like Mascagni's "Iris," Puccini's "Madama Butterfly," and Giordano's "Siberia." In the score of "Aïda" there is a slight infusion of that local color which is lavishly employed in decorating its externals. The pomp and pageantry of the drama are Egyptian and ancient; the play's natural and artificial environment is Egyptian and ancient; two bits of its music are Oriental, possibly Egyptian, and not impossibly ancient. But in everything else "Aïda" is an Italian opera. The story plays in ancient Egypt, and its inventor was an archaeologist deeply versed in Egyptian antiquities, but I have yet to hear that Mariette Bey, who wrote the scenario of the drama, ever claimed an historical foundation for it or pretended that anything in its story was characteristically Egyptian. Circumstances wholly fortuitous give a strong tinge of antiquity and nationalism to the last scene; but, if the ancient Egyptians were more addicted than any other people to burying malefactors alive, the fact is not of record; and the picture as we