Her ink-stained fingers, the disappearance of a sheet of paper from his writing desk, and the condition of his quill pen convince Bartolo on his return that he is being deceived, and he resolves that henceforth his ward shall be more closely confined than ever. And so he informs her, while she mimics his angry gestures behind his back. In another moment there is a boisterous knocking and shouting at the door, and in comes Almaviva, disguised as a cavalry soldier most obviously in his cups. He manages to make himself known to Rosina, and exchanges letters with her under the very nose of her jailer, affects a fury toward Dr. Bartolo when the latter claims exemption from the billet, and escapes arrest only by secretly making himself known to the officer commanding the soldiers who had been drawn into the house by the disturbance. The sudden and inexplicable change of conduct on the part of the soldiers petrifies Bartolo; he is literally "astonied," and Figaro makes him the victim of several laughable pranks before he recovers his wits. Dr. Bartolo's suspicions have been aroused about the soldier, concerning whose identity he makes vain inquiries, but he does not hesitate to admit to his library a seeming music-master who announces himself as Don Alonzo, come to act as substitute for Don Basilio, who, he says, is ill. Of course it is Almaviva. Soon the ill-natured guardian grows impatient of his garrulity, and Almaviva, to allay his suspicions and gain a sight of his inamorata, gives him a letter written by Rosina to Lindoro, which he says he had found in the Count's lodgings. If he can but see the lady, he hopes by means of the letter to convince her of Lindoro's faithlessness. This device, though it disturbs its inventor, is successful, and Bartolo brings in his ward to receive her music lesson. Here, according to tradition, there stood in the original score a trio which was lost with the overture. Very welcome has this loss appeared to the Rosinas of a later day, for it has enabled them to introduce into the "lesson scene" music of their own choice, and, of course, such as showed their voices and art to the best advantage. Very amusing have been the anachronisms which have resulted from these illustrations of artistic vanity, and diverting are the glimpses which they give of the tastes and sensibilities of great prime donne. Grisi and Alboni, stimulated by the example of Catalani (though not in this opera), could think of nothing nobler than to display their skill by singing Rode's Air and Variations, a violin piece. This grew hackneyed, but, nevertheless, survived till a comparatively late day. Bosio, feeling that variations were necessary, threw Rode's over in favor of those on "Gia della mente involarmi"--a polka tune from Alary's "A Tre Nozze." Then Mme. Gassier ushered in the day of the vocal waltz--Venzano's, of amiable memory. Her followers have not yet died out, though Patti substituted Arditi's "Il Bacio" for Venzano's; Mme. Sembrich,