=Cry due to hunger.= The normal cry of hunger is heard some time before the feeding is due, and is accompanied by the sucking of the thumb or the fingers. If the baby is not getting sufficient nourishment, the cry of hunger is a continuous fretful sound and is heard soon after a feeding. =Cry due to temper.= The cry of temper is loud and strong; the baby usually kicks, and his body stiffens. This is easily recognized, because when the baby gets what he wants he will stop at once. When a baby cries from temper let him cry it out. The struggle will not be long, because he will soon learn that this crying is useless. =Cry due to illness or fright.= The cry of most forms of illness is low, moaning, and fretful. The cry of fright is sudden and loud. The child should be taken up, comforted, and put down again as soon as he is quieted. In all cases of persistent crying the doctor should be called if the mother does not succeed in her attempts at quieting. =Exercise.= The young baby gets his exercise by crying (which expands his lungs), also by kicking and waving the arms. It is important that the clothing should not be so tight as to interfere with these natural movements. [Illustration: BABY EXERCISING] When he is in short clothes, at regular times each day he should be placed on the floor, on a thick blanket, and allowed to roll and creep about at will. Twice a day if possible, but always just before bedtime, the baby should be placed on a large bed in a warm room with all his clothing removed, and should be encouraged to kick and play for ten or fifteen minutes. He may be played with at this time, but must not be permitted to become excited. CHAPTER X THE BABY’S TEETH =Suggestions for demonstrations.= =1.= Demonstrate the preparation of a baby’s mouth wash. =2.= Demonstrate the care of the baby’s first teeth. =3.= Demonstrate the care of the toothbrush and explain the necessity for such care. The best way to secure sound, healthy teeth in a baby is for the mother during her girlhood to see that her own teeth are in good condition and to keep well and happy, because it is then that the foundations of health for life are established. The mother must take the best care of her teeth at all times and maintain her health in every possible way. A sickly mother usually means a sickly baby. The first teeth of the child are called the milk teeth and are twenty in number. In a normal baby the first tooth usually appears about the sixth month. The teeth usually come as follows: Two lower central incisors 6 to 9 months Four upper incisors 8 to 12 months Two lower lateral incisors} Four anterior molars } 12 to 18 months Four canines (the “eye” and “stomach” teeth) 18 to 24 months Four posterior molars 24 to 30 months