The forms of rhinitis which affect children are, in the main, subject to the same classification as when affecting adults. Various phases of the disease, however, both in pathology and clinical history, assume in childhood different degrees of importance, by reason of special tissue proclivities which are incidental to early life, and of unusual damage liable to ensue in a child from neglect of the disease during the developmental period. The treatment also requires special adaptation to the comparative helplessness and timidiy of young children. ACUTE RHINITIS. Acute rhinitis, colloquially termed cold in the head, is an acute inflammation of the mucous membrane lining the nasal cavities from the anterior nares to the naso-pharnyx. It is prone to extend to adjoining mucous surfaces and usually embraces the naso-pharnyx, at least to some degree, and thence not infrequently also the middle ear. Etiology.—Reasoning from analogy, one must regard acute suppurative rhinitis