It is reasonable to expect that a child suffering from worms will have symptoms of abdominal distress from time to time; indigestion with colic and much gas may be present; children lose their appetites and are nervous and restless; sleep is disturbed; they may grind their teeth and talk in their sleep, and they may pick their noses unnecessarily during the day. These symptoms may, however, accompany other conditions when no worms are present in the bowel. My observation has been that in children in whom worms were present the nervous symptoms were distinctly accentuated. They are unreliable children; they seem well to-day and peevish to-morrow; they complain of headaches, dizziness, and chilly feelings. They are hysterical, noisy, uncontrollable. A child with these symptoms should be suspected of having worms and if no cause can be found to explain his temperamental vagaries he should be treated for worms. I have cured a number of children of excessive nervousness by giving them medicine for worms when no worms were present. Such results can only be explained on the assumption that these children were suffering from intestinal auto-toxemia or self-poisoning, and the thorough disinfection of the bowel apparently stopped the process by ridding the child's system of a mass of bacteria, which were undoubtedly causing the auto-toxemia and consequent nervousness. Treatment.--The most efficient remedy for removing round-worms is Santonin. The quantity necessary for the various ages is as follows: Two to four years 2 grains. Four to six years 3 grains. Six to ten years 3-1/2 grains. The best way to give it is in divided doses, with an equal quantity of sugar of milk. For a child of six years the formula would therefore be, 3-1/2 grains of Santonin, mixed with the same quantity of sugar of milk divided into three powders. These powders are given four hours apart in the following way. The child is given a light supper the evening before and one-half glass citrate of magnesia the following morning and the first powder one-half hour later; no breakfast being given. A light lunch, of milk and crackers, may be taken about noon. The second powder is given four hours after the first, and the third four hours after the second. Half an hour after the last powder, a dose of castor oil (one tablespoonful) is given. In a few moments the bowels will move; usually there are no worms in this movement. A little later they will move freely again and if worms are present they will be discharged in this movement. Thread-Worm, or Pin-Worm.--A thread-worm looks just like a little piece of white thread. They are found in the lower part of the bowel and in the rectum. They are usually present, if present at all, in large numbers.