Actors try to accomplish this deception by various means. They bring to their aid wonderful skill in make-up and astonishing ingenuity in pantomime; but these external devices fail, every one of them, to produce the impression desired, unless the final effect on the mind of the person to be convinced is one of simplicity and sincerity. To create this impression of simplicity and sincerity, the actor must project his character mentally as well as reproduce it physically; he must appeal to the mind as well as to the eye; he must know human nature; he must study and experiment, and he must have the dramatic temperament. Simplicity and sincerity of this kind are none too common on the stage, and especially is one not apt to find them among the men and women who interpret any form of opera. There are two simple reasons for this. One is that the operatic singer who has a chance to study naturally enough seeks first of all to improve the voice on which he is so dependent. Acting he regards as something that can be quickly acquired from the ubiquitous stage manager. The second reason is that, even in the case of singers who can act, the artificiality of the operatic scheme--drama united with music--is bound to affect the player's art. The player in opera acts, not as men and women act, but as operatic tenors or sopranos or bassos have acted ever since opera came into being. In fact, we have become so accustomed to strutting tenors and mincing sopranos that we accept what they have to offer as a matter of course. If only they sing well and their inherent artificiality be not too ridiculous, we are satisfied. Yet when spontaneity and conviction are present, what a change in conditions they cause! They make opera--even the frivolous opera of the hardworking Harry B. Smith, who has what William J. Henderson calls the "operetta libretto habit"--seem real. One does not have to adopt the intended illusion by a sort of free-will process; it is forced on him. Marie Celeste is one of the few actresses in opera. She has spontaneity and conviction, simplicity and sincerity, and in particular refreshing and unconscious naivete. Her personality is attractive, winsome, and thoroughly feminine, and her style is vivacious, sparkling, and refined. Her voice is a high soprano of considerable power, and might easily of itself have won her a place on the operatic stage. As a matter of fact, however, her greatest successes have been in parts where singing was something of a secondary consideration. Both physically and temperamentally, Miss Celeste is best fitted for soubrette roles, parts that require appreciative humor, girlish charm, and artistic finish, ability to dance, and some pretensions as a ballad singer. Miss Celeste's dancing is dainty and graceful, without physical violence, and with a hint of the poetry of motion that makes dancing something more than an athletic feat.