. Ventilation for dwellings, rural schools and stables. the number now is. And if weshall ever be successful in driving it from among us mustnot the battle be waged in every home where the childrenare yet well and strong, by applying continuously and ef-ficiently the fresh air treatment, not leaving it to be ad-ministered only at the hospital and to those alreadystricken ? FRESH AIR SUPPLY CERTAIN TO BE AT TIMES IF DEFINITE PROVISION FOR IT IS NOT MADE. Where numbers of individiinls are sheltered in compart-ments of reasonable volume and so constructed as to permitof economic warmi
. Ventilation for dwellings, rural schools and stables. the number now is. And if weshall ever be successful in driving it from among us mustnot the battle be waged in every home where the childrenare yet well and strong, by applying continuously and ef-ficiently the fresh air treatment, not leaving it to be ad-ministered only at the hospital and to those alreadystricken ? FRESH AIR SUPPLY CERTAIN TO BE AT TIMES IF DEFINITE PROVISION FOR IT IS NOT MADE. Where numbers of individiinls are sheltered in compart-ments of reasonable volume and so constructed as to permitof economic warming in severe weather there are certainto be times when the fresh air supply will be inadequate -j^g Ventilation. unless definite provision for suph supply is made. Let usagain have recourse to positive concrete is a cylindrical metal chamber, Fig. 14, 18 inches indiameter and 20 inches deep having a cover which seals thechamber air-tight by means of its rim dipping under sweetoil carried in a groove formed about the top. Around the. Fig. 14.—A ventilation chamber foi- observing the effects of inadequatechange of air. sides are arranged a series of six openings each .71 inchin diameter, which may be closed by means of screw-caps;and two air-tight observation windows of glass. In thecover is a ventilation opening over which may be screweda short ventilating shaft beginning at the cover, or an-other long enough to withdraw air from near the the chamber is placed a lighted kerosene lamp witha No. 1 burner carrying a five-eighths inch wick, and turnedup until, in an abundant supply of air, it burns keroseneat the rate of grams per hour or .109 gallons perday. With this apparatus the following results were ob-tained : (1) With this ventilation chamber in the still air of aroom, with the cover on but not sealed with oil; with theventilator closed and with the six windows open, each pro- Experimental Ventilation Chamber, 21 vided with a thin mu
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectventilation, bookyear
