Do not expect the baby, however, to sleep or lie quietly if he is not thoroughly comfortable. He must be dry and warm. For this reason he should have plenty of light-weight bedding; if his feet are cold tuck against them a water bag or bottle covered with flannel. In warm weather protect his crib or the carriage in which he sleeps outdoors from flies and mosquitoes. Both will break his slumber or annoy his waking hours. More important, one variety of mosquitoes carry malaria; and on the feet of flies will be found the bacteria of typhoid fever, bowel infection, and the dreaded meningitis and infantile paralysis. Beyond his daily outing the young baby should do little traveling. He is not strong enough even at a year or so to be taken into railway trains, street-cars, crowded places of any sort. Neither should he be shown to visitors. After he is a few months old callers may be taken into the nursery and permitted a glimpse of his charms; but they should not be permitted to pick him up, trot him, or kiss him. Germs of tuberculosis, diphtheria, and many other serious diseases may be communicated by a kiss. No baby should ever be kissed on the mouth by other children, by nurses, visitors, or even by loving parents. If kissed at all, the spot chosen must be on the forehead or cheek, or, better still, on the dimpled hand. After a baby is six months old the mother may play with him while he is enjoying his period of undress and relaxation on the bed. This should be in the morning or after the midday nap, never before bedtime. Many mothers, even those whose first children have passed successfully through the dangers of babyhood, will call these precautions fads of the hour. They are not fads. They are valuable discoveries in science and medicine. When we realize that the man who has passed his eightieth birthday has a better chance to live than the child eight hours old, we realize how many dangers surround the young baby. A shock may wreck a child’s nervous system. A sudden chill may cause an attack of bowel trouble that will prove fatal within twenty-four hours. A kiss, laden with infection, may cause death or lifelong deformity for the child. Very few children are born nervous. They acquire it from a nerve-racking environment, or it is thrust upon them by parents who insist upon playing with them, taking them into noisy crowds, when all they need and ask is the right to sleep.