It is sometimes very difficult and in some cases impossible to distinguish acute catarrhal laryngitis from membranous laryngitis or laryngeal diphtheria. This is not so important to the chiropractor, for if adjustments are given soon enough results will be obtained before positive diagnostic symptoms have time to develop. However, it is well to be thoroughly informed on the difference in the symptoms since the chiropractor is sometimes not called in until the condition is well under way. At the onset the two conditions are very much alike, which is very reasonable to the chiropractor, since the only difference is in degree of severity, due to a different combination, and a difference in degree of the functions involved resulting from the same combination o£ subluxations. In the catarrhal condition the temperature is usually greater than in the membranous form. The dyspnea in catarrhal laryngitis is usually paroxysmal; it is less exaggerated during the day but worse at night, while the membranous type is constant and rapidly becomes more exaggerated. The dyspnea occurs on both inspiration and expiration, while in the catarrhal form it occurs only on inspiration. If the culture shows Klebs-Loeffler bacilli it is considered laryngeal diphtheria. Major Adjustment As has been stated, the chiropractor gives the same adjustment whether it is membranous or catarrhal. The major combination is L.C. and S.P. with K.P. Excellent results are obtained from adjustments in these cases. When the first symptoms are manifest adjustments should be given immediately in order to get the best results. The usual difficulty in such cases is that the parents consider the condition only a cold and of little importance. Therefore, they neglect taking the child to a chiropractor until great momentum has developed. Such cases necessitate a greater amount of time before results are obtained. CHRONIC LARYNGITIS This form is simply a prolongation of the acute form, but may be associated with adenoid growths of the pharynx, with tuberculosis of the larynx, with syphilis or with new growths in the larynx. Symptoms The symptoms are similar to those in the acute stage except they are not so severe. It is not uncommon to find adenoid growths in the pharynx of the very young infant. There is a superficial inflammation of the mucous membrane producing a local calorific plus. This is the result of interference with transmission of mental impulses to these tissues and when this interference is removed Innate Intelligence will function normally and the growths will disappear. Major Adjustment The adjustment is the same as in the case of acute laryngitis. The results will be slower in the chronic case than in the acute case, but in the course of time the child will be entirely relieved of the condition without the aid of surgery. If the proper adjustment is given during the acute attack the condition will never reach the chronic state.