. Ventilation for dwellings, rural schools and stables. artificially heated,must either be very cold or have a small air movementthrough it. In either case the air must be damp and forthis reason unsanitary. The side windows in this stable areexcellent, both in dimensions and exposure, but, in ourjudgment six or seven, instead of ten, on a side, would havebeen ample. Tf it shall be proven imperative to admit more direct andsky light into stables for the purpose of disinfectionthen some type of construction embodying the principle Lighting of Stables. 81 represented in Fig. 35 must be adopted.
. Ventilation for dwellings, rural schools and stables. artificially heated,must either be very cold or have a small air movementthrough it. In either case the air must be damp and forthis reason unsanitary. The side windows in this stable areexcellent, both in dimensions and exposure, but, in ourjudgment six or seven, instead of ten, on a side, would havebeen ample. Tf it shall be proven imperative to admit more direct andsky light into stables for the purpose of disinfectionthen some type of construction embodying the principle Lighting of Stables. 81 represented in Fig. 35 must be adopted. In a type of con-struction like this, with double windows arranged along theslope of the roof, and with similar windows in the side bothdirect sunshine and reflected light from the sky may be ad-mitted to the stable from all zones to the greatest practi-cable extent and at the same time utilize the animal heatin keeping the stable warm, thus permitting a maximumflow of air through the stable without unduly lowering itstemperature or rendering it Fig. 35.—Cross-section of a concrete one-story dairy stable desi^Mied toadmit tlie maximum amount of direct sunshine and of diffused lijjiit fromthe whole sky, leaving it at the same time warm in construction so as topermit tlie maximum air movement thus coml)ininff sunlight and desicca-tion to the greatest practicable extent as disinfecting agents. It does not appear likely, however, that such extremesof illumination for either dwellings or for stables will befound materially better than moderate window space con-flnod to the walls. It will not be maintained that, evenout of doors where direct sunshine is at a maximum both inintensity and in duration and where the full hemisphere ofreflected liprht from the sky is added, bringing illuminationfrom every side, all disease germs which may th(^re bepresent are destroyed by the light. Faced by this generaltruth relative to light as a destroyer of disease germs it b<-(•omes cle
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectventilation, bookyear
