. A treatise on hygiene and public health . ating rooms is furnished by tubes orflues, which may be of tin or zinc, runningup in the walls of dwellings, with gas-jets inthem, and opening with proper protectionabove the roof. Such flues may be intro-duced into old houses (as when such housesare converted into schools) as supplementsto the power of chimneys, which are rarelyadequate to the task of ventilating suchschools. The annexed figure (Fig. 26) gives a sec-tional view of a chimney which serves toventilate a hospital at Glasgow. The massof masonry is pierced with flues for the dif-ferent fi
. A treatise on hygiene and public health . ating rooms is furnished by tubes orflues, which may be of tin or zinc, runningup in the walls of dwellings, with gas-jets inthem, and opening with proper protectionabove the roof. Such flues may be intro-duced into old houses (as when such housesare converted into schools) as supplementsto the power of chimneys, which are rarelyadequate to the task of ventilating suchschools. The annexed figure (Fig. 26) gives a sec-tional view of a chimney which serves toventilate a hospital at Glasgow. The massof masonry is pierced with flues for the dif-ferent fireplaces, which are in part repre-sented. It is seen that an opening is madein the upper part of the wall of each roomover the fireplace, through which air escapeL^into the chimney-flue. In Fig. 27 two roomsare seen, provided with channels for extract-ing air (as above) through the fireplace andthe opening over it, and with inlets for airby the ceiling, and over and under the sashesin various ways. Ventilation by pulsion, as well as by ex-.
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Keywords: ., bookcentury1800, bookdecade1870, booksubjecthygiene, bookyear1879
