Much of the sickness of infants is traceable to improper diet in the mother. Many women are fond of pickles, vinegar, and sour fruit, and many also accustom themselves to live too much on salt meat. The milk disagrees with the child, turns acid on its stomach, and produces gripes; the mother then gives it "soothing syrup," or some other abomination to make it sleep. It is no wonder so many infants die. One of the first complaints most commonly met with in young children, is-