Hygiene and public health

ammonia amount animal bacillus bacteria basin become beds body boiling brick carbonic acid cause cement cent cesspools chalk chimney cholera cistern clean closet CO₂ coal coal gas colouring combustion containing cubic feet cubic foot death rate deposit diarrhoea diphtheria discharge disease disinfectant dust effluent enteric fever epidemic escape fæces favour filter floor flushing foul air fresh air gases ground hard water heat house drains impure inches infection inlet iron joints lead less liable lime liquid means meat milk moisture nitrogen nuisance organic matters oxide oxygen placed poisoning pollution pressure prevent produced purification quantity removed scarlet fever sewage sewer sewer air shaft siphon skin soil pipe solid steam stoneware sub-irrigation sulphuric acid sulphurous supply surface suspended matters symptoms tank temperature tion towns trap tuberculosis urine vaccination valve vapours vegetable ventilation walls waste water-closets whilst