Certain enterprising persons, counting upon the narrow-mindedness of the multitude, succeed to an annoying degree in the sale of so-called " dentition necklaces," which, by the alleged production of an electric current, are claimed to prevent teething disturbances. In reality, these remedies are nothing brit expensive humbugs. In weak children, and especially in those suffering from rickets, dentition is usually delayed, in some cases until the second year of life.
When the baby has fever, this will manifest itself to the observant mother by redness of the head, by general unrest or by an unusual inclination to sleep, and by loss of appetite. It may be determined exactly by measuring the temperature with a thermometer, which should be introduced into the rectum for about an inch or two, the end introduced (that containing the mercury) being first greased with butter or vaseline. The thermometer should remain in the rectum for from five to ten minutes (see Fig. 304). A temperature of more than 99'SQF is always indicative of an affection, and calls for an examination of the baby by a physician. It is usually best to let a doctor show the mother how to use the thermometer.
During the first two weeks of life the baby is scarcely influenced by external impressions. During the third week it begins to turn its eyes toward the light, and after about two months it can be quieted by song.
When between three and six months old it begins to recognise its surround ings, and extends its hands for objects offered to it. At the age of seven months it is possible for the child to distinguish certain consonants and brief syllables, such as ma, pa, ta, boo, etc. Some precocious youngsters may even be able to answer to their names at this age.
The healthy baby usually begins to sit up when about four or five months old, and three or four months later it attempts to stand on its feet. The first attempts at walking are made when between ten and twelve months of age. Any essential divergence from these rules points to a morbid condition which requires medical advice.
The best toys for a small infant arc colourless rubber dolls, which may be suspended in such a manner that the baby can reach them and swing them to and fro. Wool-covered animals may cause harm, if the baby gets some of the fluffy stuff into its mouth. Small objects which may be swallowed, and pointed or coloured objects which may cause external injury or poisoning, should be kept away from the infant. For a more detailed account of the proper care of an intant, see Louis Fischer's "The Health-Care of the Baby."