Bones—Great care must be taken in handling a baby. Its bones are soft and easily injured, and for this reason a baby should not be handled more than necessary. When very young its entire spine should be supported, and no undue pressure made upon the chest, as often happens if the baby is grasped under the arms. In lifting a young baby from its bed, the right hand should grasp the clothing below the feet, and the left hand should be slipped beneath the infant's body to its head. It is then raised upon the left arm. An older child should be lifted by placing the hands under the child's arms, and never by the wrists. If children are jerked or lifted by the arms, serious injury may be done to the bones. The bones, when a child is growing, are partly composed of soft tissue which is easily destroyed, and further growth is prevented. Many children are brought to the hospitals with injuries done to their arms from being jerked across the street. Do not let a child walk too soon, especially a heavy child. Bow legs and knock knees come from standing and walking when the bones are soft.
Exercise—At least twice a day an infant should be allowed for fifteen or twenty minutes the free use of its limbs by permitting it to lie upon a bed in a warm room, with all clothing except the shirt and diaper removed. In cold weather leave on the stockings. Later, when in short clothes, the baby may be put upon a thick blanket or quilt, laid upon the floor, and be allowed to tumble at will.
Rest—Healthy children never sleep too much. A new born baby should sleep nine-tenths of the day. A child should have a nap during the day until four years old, and, if possible, until seven or eight years old. It should go to bed before six. It should have a crib or bed to itself, placed where it will have fresh air, but protected from draughts, and its eyes protected from direct rays of light.
Air and Sun—A little child is in its room so much it is very important that fresh air and sunlight should be brought to it there. Rooms may be well aired twice or three times a day, removing the baby to another room while the windows are open. The child may be placed in its crib or carriage before on open window, dressed as if for the street. After children are three months old they may be taken out, but the sunny part of the day should be chosen, between 10 a. m. and 3 p. m. in cold weather. At night the windows should be partly opened, but care should be taken that the infant does not become chilled. Be careful that sheet and blankets do not get over a baby's head. The clothes may be pinned to the side of the bed.
Food and Water—Even little babies should be given water twice a day. The water should be boiled, cooled and kept covered. It is hardly possible for children or older persons to drink too much water. During hot weather a child needs more water than during cold weather.
Mother's milk is the only perfect food for an infant during the first nine or ten months. If it is necessary to give artificial food from a bottle, the greatest possible care must be taken. The milk used should be the best obtainable. To obtain clean milk it is necessary that everything that touches it be clean, sterilized when possible, and that the cows, and men who handle the milk be healthy. In New York City all milk is classified according to its cleanliness and butter fat content. The cleanest and richest milk is called "certified milk" and is sold raw. The other milks are classified according to cleanliness. Grade A, B and C are all pasteurized. Only certified and Grade A should be used for infant feeding. You know that sterile means free from germs or bacteria. Milk or water may be made comparatively sterile by boiling. Pasteurized milk is milk which has been heated to 155° Fahrenheit, kept at that temperature for thirty minutes and cooled quickly by placing the bottles in cold running water.
Punctual feeding makes good digestion, and even if the baby takes an extra nap it is better to wake a healthy baby to give him his meals at regular hours than to let his digestion get out of order. Between meals a little water which has been boiled and cooled and kept covered will wash out its mouth as well as refresh the child. The average infant is fed every three hours until it is five months old. After that it is fed every four hours until it is fifteen or sixteen months old, when it is shifted to three meals a day with perhaps a cup of milk in long intervals. Solid food, such as zwieback and milk or cereal, is begun at seven months, and by thirteen or fourteen months the child will be eating cereal, bread, broth, beef juice, potato, rice, vegetables, etc. Candy is harmful for children, and even older children should eat candy only after meals. Raw fruit, except orange juice, is apt to be upsetting in summer.
Keep the baby and everything around him clean. The baby's food is the most important thing to keep clean. The cleanliness of the bottle, when it is necessary to feed the baby from one, is very important. Choose a bottle of fairly heavy glass with rounded bottom and wide mouth, so that it may be easily cleaned. Short rubber nipples which clip over the neck of the bottle and which can be easily turned inside out, should be selected, and discarded when they become soft, or when the openings become large enough for the milk to run in a stream instead of drop by drop. Remove the bottle from the baby's mouth as soon as empty, rinse at once in cold water and then fill with a solution of bicarbonate of soda (baking soda), about one teaspoonful to a pint of water. Before rinsing wash in hot soapsuds, using a bottle brush, rinse well in plain water, and boil for twenty minutes, placing a clean cloth in the bottom of the basin to protect the bottle from breaking. Before using new nipples they should be scrubbed inside and out and boiled for at least five minutes. After using they should be carefully rinsed in cold water and kept in a covered glass containing a solution of boric acid (one teaspoonful dissolved in a pint of boiling water), and at least once a day be turned inside out and thoroughly washed with soap and water, then rinsed. Nipples should be boiled twice a week.
Bath—A baby should have a bath every day, not sooner than one hour after feeding. The room should be warm; if possible there should be an open fire in the room. The temperature of the water for a baby up to six months old should be 98°. Then it should gradually decrease, next temperature being 95°, until at the age of two it should range between 85° to 90°. Before a baby is undressed the person who is bathing the baby must be sure that everything needed for the bath and dressing is at hand. The hand basin or small tub of warm water, a pitcher of hot water in case it is needed, castile or ivory soap, soft wash cloths, towels, brush, powder, fresh absorbent cotton, boric acid solution, and the baby's clothes laid out in the order in which they will be needed in dressing the child, the soft flannel bandage, the diapers, the shirt, flannel petticoat, dress and shawl.
For some people it is easier to handle a baby when laid on a bed or table than on one's lap, having under the child a soft bath towel or canton flannel large enough to be wrapped around it. Its nose may be cleaned with a bit of absorbent cotton rolled to a point, using a fresh piece for each nostril. To bathe the eyes use fresh pieces of absorbent cotton dipped in boric acid solution. Wash the baby's face carefully so that the water does not drip into its ears. Dry the face carefully. Wash the head gently and thoroughly with soap, being careful to rinse completely. Soap the baby's body before putting it into the bath. As a soapy little baby is difficult to hold, support him firmly all the time he is kicking and splashing, by placing the arm or hand at the baby's back between its shoulders. Wash particularly, under the arms, the creases in the back of the neck, between the legs, fingers and toes. The bath should be given quickly and the baby lifted out in the bath towel or flannel, covered and dried quickly, using a soft towel. Rub the baby very slightly. All the folds of the skin should be dried and well powdered: under the arms, behind the ears, about the neck, legs, etc. Do not put too much powder on, as it forms a paste. Dress the infant and lay it on its crib while putting away all the things used for its bath. It is perfectly proper for a baby to exercise its lungs by crying, so do not be alarmed, but be sure that its clothing is comfortable and that the child is clean. Garments worn at night should always be different from those worn during the day. The garments next to the skin should be of wool or part wool, except the diaper, which should be soft cotton, and when new, washed several times before using. Wet diapers should be rinsed in cold water and dried before using a second time; about every twenty-four hours diapers should be washed, scalded, rinsed in cold water and hung in the air to dry.