The general adoption of a system of consuming smoke would render the London air as pure as that of the country, and diminish many of the nuisances and inconveniences of a town residence. It must in a future age be as difficult to believe that the Londoners could have resided in the dense atmosphere of coal-smoke above described, as it is now hard to conceive that our ancestors endured houses without the contrivance of chimneys, from which consequently the smoke of fires had no means of escape but by the open doors and windows, or through a hole in the roof!
