The love as well as admiration excited by Mdlle. Sontag during her residence at Berlin, gave rise to many singular incidents. Not allowed to approach the object of their idolatry, her adorers had recourse to the most eccentric expedients to express their devotion. It is related that a young man of rank was so desperately enamored of her, as to resort to the romantic expedient of hiring himself as a servant in her family, to have the pleasure of constantly seeing her; nor was the truth suspected by the object of his adoration, or any one else, until the gentleman's own relations discovered him, and removed him from the vicinity of the attraction. That wise and excellent monarch, the late King of Prussia, heartily joined in the enthusiasm of his subjects; and that he entertained as much esteem as admiration for Madlle. Sontag will be proved in the most signal manner by a circumstance we shall have presently to relate. Whilst at the Berlin theatre, overtures were made to Mdlle. Sontag from the Italian Opera in Paris--then belonging to the Crown, and under the control of Vicomte Sosthene de la Rochefoucault, who for many years ruled, under the Restoration, the theatres of France, and endeavored, with rather dubious success, to apply the "Maxims" of his witty ancestor to the government of stage affairs. As M. Sosthene had for negotiator in this treaty the great Rossini, who had made Mdlle. Sontag's acquaintance in Vienna, his wishes, amongst the offers made from all quarters, prevailed. Madlle. Sontag made her first appearance in Paris at the beginning of the season. She arrived in Paris at the close of the year 1827, after a triumphal "Progress" through Holland and the Rhenane provinces, in which she gathered abundantly both those crowns which are supposed always to be made of laurel, as well as those which bear the effigies of monarchs. Paris was then the centre of taste and the metropolis of art--the occupation of the whole population the enjoyment of pleasures or the ministering to its desires and caprices. Madlle. Sontag's voice and beauty produced a _furore_--each note produced a murmur or an acclamation. No feature of hers escaped a sonnet, from her eyebrow to her pretty foot. The ugliest women thought they became handsome by imitating her costume; and venders of articles of luxury and fancy goods found no easier way of getting rid of their wares than by stamping them with her name or with her supposed resemblance.