We sometimes go to church and hear a preacher who depends upon his moods for the power to preach his best. He preaches well, and we say that he is in the mood; and then again he preaches poorly, and we say that he is not in the mood. A public singer who has the power to move us at her will, comes into the concert-room, and gives her music without spirit and without making any apparent effort to please. We say that Madame or Mademoiselle is "not in the mood to-night." A lecturer has his moods, which, apparently, he slips on and off as he would a dressing-gown, charming the people of one town by his eloquence and elegance, and disgusting another by his dullness and carelessness. We are in the habit of saying that certain men are very unequal in their performances, which is only a way of saying that they are moody, and dependent upon and controlled by moods. I think that, in any work or walk of life, a man can in a great degree become the master of his moods, so that, as a preacher, or a singer, or a lecturer, he can do his best every time quite as regularly as a writer can do his best every time. Mr. Benedict somewhat inelegantly remarked, when in this country, that the reason of Jenny Lind's success was, that she "made a conscience of her art." If we had asked Mr. Benedict to explain himself, he probably would have said that she conscientiously did her best every time, in every place. This was true of Jenny Lind. She never failed. She sang just as well in the old church where the country people had flocked to greet her, as in the halls of the metropolis. Yet Jenny Lind was decidedly a woman of moods, and indulged in them when she could afford it.