. American school building standards . Tair Circulation Ideal method FIG. *2. These experiments are illustrated in figure (12),It is perhaps well to add that the practice of thelbest ventilating engineers and the experienced]of the years which have elapsed since these ex-lperiments by Mr. Briggs demonstrate the correct™ness and reliability of his conclusions. 100 SYSTEMS OF VENTILATION. Until very recent years, ventilation was regardedmore as a luxury than a necessity. Although thediscomforts of poorly ventilated rooms have al-ways been known and deprecated, the apparentnecessity of complex an
. American school building standards . Tair Circulation Ideal method FIG. *2. These experiments are illustrated in figure (12),It is perhaps well to add that the practice of thelbest ventilating engineers and the experienced]of the years which have elapsed since these ex-lperiments by Mr. Briggs demonstrate the correct™ness and reliability of his conclusions. 100 SYSTEMS OF VENTILATION. Until very recent years, ventilation was regardedmore as a luxury than a necessity. Although thediscomforts of poorly ventilated rooms have al-ways been known and deprecated, the apparentnecessity of complex and expensive methods forcorrecting the difficulty has undoubtedly retardedthe advancement in this department of buildingeconomy. But, as a result of the recent advance inhygienic science and experiment, it is now wellknown that the vitiated atmosphere of crowdedrooms is positively and undeniably injurious, oftenleading to the propagation of various dangerousdiseases, and that continued exposure to it is rea-sonably certain to be foll
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectschoolb, bookyear1910
