This incoördination is relatively rare in small children, except in diphtheria, when it appears as a contamination into the bronchi from the larynx and trachea. It may be acute or chronic and affects all ages from infancy to puberty. The characteristics are severe dyspnea and the coughing up of fibrinous casts from the large bronchi after which there is a marked improvement. As the exudate collects again the symptoms reappear. In the chronic form there is dyspnea and expectoration of fibrinous casts. Major Adjustment The adjustment for fibrinous bronchitis is the same as that for other forms of bronchitis. The prognosis is excellent, providing adjustments are given in time to enable Innate to overcome the momentum. Results are obtained in a very short time. PNEUMONIA Aside from digestive disturbances, the most common incoördinations affecting infants are those involving the lungs, and especially as a sequel following the so-called infectious dis-eases. The different types of pneumonia are named according to the area of the lungs involved and the nature of the changes affecting them. The two general divisions are bronchopneumonia and lobar pneumonia. These two principal groups are divided into several subdivisions according to the particular pathology and stage of development. It is not of vital importance to the chiropractor to know just what part of the lungs or bronchi is involved or the nature of the pathology. He must, however, be sufficiently familiar with symptoms to correctly determine the zone in which the incoördination is located. In bronchopneumonia the entire bronchial wall of the small bronchi is affected, while in lobar pneumonia the bronchitis is usually very superficial and the terminal bronchi and alveoli are filled with a fibrant exudate. An entire lobe may be involved or the inflammation may involve only part of a lobe. Very often the two varieties, bronchopneumonia and lobar pneumonia will be present in the same case, one variety affecting one part of the lung, while the other variety will affect another part of the lung. In children by far the larger percentage of cases of pneumonia is of the bronchopneumonia type; however, as has been stated, the type of pneumonia is of little importance, but the location of the zone or zones is of vital importance.