A Manual of public health

acid added allowed amount animals atmosphere barometer Board calculated carbon dioxide carried cause cent cistern closed colour column common Company constructed containing course cubic feet deaths diameter direct discharge disinfectant divided drain equal estimated example experiments fall figures filter foot force formula gallons given gives glass grms heat hour inches increase instance iron known length less lime liquid litre living London lower matter means measure mercury method minute multiplied necessary nuisance observations obtained organic oxygen passing persons pipe placed population practical premises present pressure principle quantity removed river rule scale sewage sewer showing side solution space square steam sufficient sulphuric supply surface taken temperature town trap tube vapour various ventilation volume warm weight