PEOPLE who insist on the necessity of providing proper ventilation for dwellings, churches, school-houses, and public halls, are often thought to be little less than fanatics. But here is what some men of science have said with regard to the evil results of breathing vitiated air. "Allowing the fullest effect to all other agencies," says Dr. Parkes, an eminent English authority, "there is no doubt that the breathing of the vitiated atmosphere of respiration has a most injurious effect on the health." "Impure air," says Baudeloque, a French scientist, "is the great cause of consumption." This view is also held by Langenbeck, an eminent anatomist. Dr. Carpenter asserts that it has been proved beyond question "that the fatality of epidemics is almost invariably in precise proportion to the degree in which an impure atmosphere has been habitually aspired." And the New York Board of Health has expressed the opinion that forty per cent. of all deaths are caused by breathing impure air. "Viewing the causes of preventable diseases and their fatal results," the board says, "we unhesitatingly state that the first sanitary want in New York and Brooklyn is ventilation."—N. Y. Examiner.