From birth, especially during the first week, baby's eyes are very sensitive to light; hence they must be carefully protected. Babies should be so placed during their outings, sleep, or naps, that they do not directly gaze at either the sunlight or sky. The lining of the hood of the carriage should be green, instead of white, as much eye strain is thus prevented. The daily care of the normal, well eye has been already described, and while it need not be reiterated, we may say, in passing, that if the eyelid be at all inclined to be sticky or adherent, never use force, but instead, gently swab with boracic acid. As a preventive of this condition, a little vaseline from the tube may be rubbed on the edges of the lids at night. In the toilet of the ears, never attempt to introduce anything beyond the external ear, which may be carefully cleansed with a soft cloth. It is often found necessary to apply oil to the creases behind the ears before the daily bath. There should be no irritation, redness, or roughness present, all such conditions being readily prevented by the use of oil or vaseline before the bath. With the sharp point removed, make a cotton applicator out of a toothpick, and gently (with no force, whatever) introduce vaseline or oil into the nose. This should be a part of baby's daily toilet. Any stoppage of mucus or snuffiness in the nose should be reported at once to baby's physician. Young babies often have adenoids. CARE OF THE MOUTH Leave the well mouth alone until the teeth appear, and then keep the teeth very clean (allowing no particles of milk to accumulate at their bases) with a soft bit of cotton and gentle rubbing. When a child attains the age of two, he should have his own toothbrush; previous to this time all food particles should be removed from between the teeth with waxed silk floss. All decay should be promptly attended to by a competent dentist. Thrush and ulcers are often caused, not prevented, by the frequent wiping out of baby's tender mouth. The treatment of thrush and other mouth infections will be considered in a later chapter, "The Common Disorders of Infancy." THE CARE OF THE GENITAL ORGANS Before the bath, the baby girl's genitals are carefully swabbed between all the folds with boracic acid solution. The foreskin of the boy baby should be pushed well back and washed gently with water. If the foreskin of the male child be long, tight, or adherent, circumcision is advised. See our chapter, "Teaching Truth." The genitals of both the boy and girl should be kept scrupulously clean every day, with as little handling as possible, and, upon the appearance of the least swelling, discharge, or even redness, the physician's attention should be at once called to it. In a later chapter, the subject of irregularities of sex habits will be taken up. CARE OF THE BUTTOCKS