However, the professional aunt cannot be sure of this, although she can guess; so she must wait patiently, for the sake of Baby's morals and nurse's feelings, until he does say, "Ta-ta." We may suppose that he at last loses his temper and says it, meaning, no doubt, "For goodness sake, go!" if not something stronger. The nurse is satisfied, the aunt is released, and the conscientious objector is wheeled away. Besides ministering to the soul of a baby the aunt must tend to its bodily needs, and for this reason she must be a good needlewoman. Before the arrival of the first nephew or niece, when she is very unprofessional, she will hastily put her work under the sofa or behind the cushion when any one comes into the room. As she grows older and more professional, and the nephews and nieces become more numerous, she will give up hiding her work. People who are intimately connected with the family will show no surprise, and to inquisitive strangers, unless she is very religious, she can murmur something about a creche, so long, of course, as Zerlina is not there. The really successful aunt, one who is at the top of her profession, can perfectly well be trusted to take all the children to the Zoo alone; that is to say, without a nurse, and of course without the mother. The mother knows how pleased and gratified an aunt feels on being given the entire charge of the children. The nurse is gratified too; in fact every one is pleased, with perhaps the exception of the aunt. But it is against professional etiquette for her to say so. She only wonders why mothers think a privilege they hold so lightly--taking the children to the Zoo--should be so esteemed by other women. But as the old story goes, "Hush, darling, hush, the doctor knows best," so must we say,--"Mothers know best." Another qualification in a professional aunt, desirable if not indispensable, is tact. If she should be possessed of ever so little, it will save her a considerable amount of bother. She won't, in a moment of mental aberration, praise dark-eyed children to Zerlina, whose children have blue eyes. Should she do so, by some unlucky chance, it would take several expeditions to the Zoo, and probably one to Kew, before things were as they were. If Zerlina, however, should, by the expedition of the aunt and children to Kew, be enabled to do something she very much wanted to do, and couldn't, because the nurse's father was ill, and the nursery-maid anemic, the little misunderstanding will have disappeared by the time the aunt returns from Kew, and Zerlina will say, after carefully counting the children,--it is this mathematical tendency in mothers that hurts an aunt,--"I do trust you implicitly with the children, dear. You know that; it isn't every one I could trust; you are so capable! I wish I were, but one can't be everything. Of course you don't understand a mother's feelings."