The Air and Ventilation of Subways |
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14th Street station 96th Street acid amount of carbon analyses atmosphere axilla bacteriological barium hydroxide blow-holes Boston subway breath Brooklyn Bridge Brooklyn Bridge station carbon dioxide cars cent centimeters Central London Railway chemical Columbus Circle Conductor 16 cubic feet cubic meter degrees diseases dry pleurisy effects electric Engineering examined fans filter fresh air gases Grand Central station heat humidity injurious investigation iron particles John Wolfe-Barry laboratory Large 12mo large number light Locomotive fireman London lungs Mechanics metallic miles milligrams minute molds Motorman number of passengers numbers of bacteria observations odors openings operation oxygen persons platforms pneumococcus practically produced pump quantity Railway respiratory rhinitis road samples of air sanitary siderosis sputum stairways subway air subway dust subway employees Table temperature throat tion Tracks trains tubes tunnel unpleasant vapor ventilation volumes of air weight of dust York subway
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