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.