At the head of this class of evils stands the flagrant nuisance of smoke. Those members of the Court who have visited foreign capitals where other fuel than coal is employed, will remember the contrast between their climate and ours--will remember (for instance even in Paris) the transparence of air, the comparative brightness of all colour, the visibility of distant objects, the cleanliness of faces and buildings, instead of our opaque atmosphere, deadened colours, obscured distance, smutted faces, and black architecture. Those, even, who have never left our metropolis, but who, by early rising or late going to rest, have had opportunities of seeing a London sunrise, can judge, as well as by any foreign comparison, the difference between London as it might be, and London as it is. Viewed at dawn and at noon-day, the appearances contrast as though they were of different cities and in different latitudes. Soon after daybreak, the great factory shafts beside the river begin to discharge immense volumes of smoke; their clouds soon become confluent; the sky is overcast with a dingy veil; the house-chimneys presently add their contributions; and by ten o’clock, as one approaches London from any hill in the suburbs, one may observe the total result of this gigantic nuisance hanging over the City like a pall. If its consequences were confined to rendering London (in spite of its advantages) the unsightliest metropolis in Europe, to defacing all works of art, and rendering domestic cleanliness expensive, I should have nothing officially to say on the subject; but inasmuch as it renders cleanliness more difficult, and creates a despair of cultivating it with success, people resign themselves to dirt, domestic and personal, which they could remove but so temporarily: or windows are kept shut, in spite of immeasurable fustiness, because the ventilation requisite to health would bring with it showers of soot, occasioning inconvenience and expense. Such is the tendency of many complaints which have reached me, and of their foundation in truth and reason I have thorough conviction and knowledge. I would submit to your Hon. Court that these evils are not inconsiderable; and that beside the injury to property (with which I have nothing to do) the detriment to health, if only indirect, claims to be removed. Yet, while I am cautious to speak of this latter injury, as though it were only indirect--only by its obstruction of healthy habits, I ought likewise to tell you, that there are valid reasons for supposing that we do not with impunity inhale day by day so much air which leaves a palpable sediment; that many persons of irritable lungs find unquestionable inconvenience from these mechanical impurities of the atmosphere; and (gathering a hint from the pathology of vegetation) that few plants will flourish in the denser districts of London, unless the air which conduces to their nourishment be previously filtered from its dirt.