The sprightly young lady whose entrance had been so opportune seemed a universal favorite, and was overwhelmed with invitations to “bag,” “hop,” and “blow” from the gentlemen who hovered about her, cheerfully distorting themselves to the verge of dislocation in order to win a glance of approbation from the merry black eyes which were the tapers where all these muscular moths singed their wings. Mr. Bopp had never seen such a little piece of earnestness before, and began to think the young lady must be training for a boat-race or the ring. Her dumb-bells flew about till a pair of white arms looked like the sails of a windmill; she hit out from the shoulder with a vigor that would have done execution had there been anything but empty air to “punish;” and the “one, two, three!” of the Zouave movement went off with a snap; while the color deepened from pink to scarlet in her cheeks, the black braids tumbled down upon her shoulders, and the clasp of her belt flew asunder; but her eye seldom left the leader's face, and she followed every motion with an agility and precision quite inspiring. Mr. Bopp's courage rose as he watched her, and a burning desire to excel took possession of him, till he felt as if his muscles were made of India-rubber, and his nerves of iron. He went into his work heart and soul, shaking a brown mane out of his eyes, issuing commands like general at the head of his troops, and keeping both interest and fun in full blast till people laughed who had not laughed heartily for years; lungs got their fill for once, unsuspected muscles were suddenly developed, and, when the clock struck ten, all were bubbling over with that innocent jollity which makes youth worth possessing, and its memory the sunshine of old age. The last exercise was drawing to a close, and a large ring of respectable members of society were violently sitting down and rising up in a manner which would have scandalized Miss Wilhelmina Carolina Amelia S. Keggs to the last degree, when Mr. Bopp was seen to grow very pale, and drop in a manner which it was evident his pupils were not expected to follow. At this unexpected performance, the gentlemen took advantage of their newly-acquired agility to fly over all obstacles and swarm on to the platform, while the ladies successfully lessened their unusual bloom by staring wildly at one another and suggesting awful impossibilities. The bustle subsided, as suddenly as it arose; and Mr. Bopp, rather damp about the head and dizzy about the eye, but quite composed, appeared, saying, with the broken English and appealing manner which caused all the ladies to pronounce him “a dear” on the spot,--