. A manual of practical hygiene. not exceeding two or three hoursduration should in no case be less than 30 cubic feet of air per minutethrough the regular flues of supply, and in legislative buildings the apjoar-atus should be such that at least 45 cubic feet of air per person per minutecan be furnished, with a possibility of increasing it to 60 feet per minutewhen desired (Billings). Special Buildings, etc. One of the most satisfactory small hospitals, in point of heating andventilation, is the Barnes Hospital at the Old Soldiers Home, near Wash-ington. This contains four wards, in two stori
. A manual of practical hygiene. not exceeding two or three hoursduration should in no case be less than 30 cubic feet of air per minutethrough the regular flues of supply, and in legislative buildings the apjoar-atus should be such that at least 45 cubic feet of air per person per minutecan be furnished, with a possibility of increasing it to 60 feet per minutewhen desired (Billings). Special Buildings, etc. One of the most satisfactory small hospitals, in point of heating andventilation, is the Barnes Hospital at the Old Soldiers Home, near Wash-ington. This contains four wards, in two stories ; each ward has twelvebeds, and an allowance of 1,500 cubic feet per bed. The wards are heatedby coils of hot Avater, placed in air-chambers in the basement at the flow of water to each coil can be regulated by a cock ; but it requiresau hour for a coil to cool down, and an arrangement for more speedychange is to be desired. (See Figs. 105 and 106.) The fresh-air flues are of 470 AMERICAN APPENDIX TO PARKES terra-cotta pipe built iuto the walls. The foul-air flues are lined with tin,aud are cleaned daily ; there are two for each ward, one above the ceilingand one below the floor, at the middle; each has five inlets ; and thepatients being under military discipline the inlets are not defiled as theywould be likely to be in a civil hospital. These ducts lead to an aspirator chimney, heated by the boiler flues and kitch-en Hues, or by a special fire when the boileris not in operation in moderate weather. Themean velocity of the upward current of air is180 feet per minute ; with good fires in thegrates at the base the highest recorded veloci-ty was 700 feet. A fan is used to force coolair through the heating flues in moderateweather, when it is unsafe to open an experiment, all the outlets to a certainward having been closed for thirty-five min-utes, the air was found to contain per10,000 of which was reduced to byten minutes use of
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Keywords: ., bookcentury1800, bookdecade1880, booksubjecthygiene, bookyear1883
