They also say, That in one-half of London people drink Thames water; and in the other half, get water from the Chadwell spring and River Lea. That the River Lea, for twenty miles, flows through a densely-peopled district. and is, in its passage, drenched with refuse matter from the population on its banks. That there is added to Thames water the waste of two hundred and twenty cities, towns, and villages; and that between Richmond and Waterloo-bridge more than two hundred sewers discharge into it their fetid matter. That the washing to and fro of tide secures the arrival of a large portion of filth from below Westminster, at Hammersmith; effects a perfect mixture, which is still farther facilitated by the splashing of the steamboats. Mr. Hassal has published engravings of the microscopic aspect of water taken from companies which suck the river up at widely-separated stages of its course through town—so tested, one drop differs little from another in the degree of its impurity. They tell us that two companies—the Lambeth and West Middlesex—supply Thames Mixture to subscribers as it comes to them; but that others filter more or less. They say that filtering can expurge nothing but mechanical impurities, while the dissolved pollution which no filter can extract is that part which communicates disease. We know this; well, and what then? There are absurdities so lifted above ridicule, that Momus himself would spoil part of the fun if he attempted to trangress beyond a naked statement of them. What do the members of this Water Party want? I’ll tell you what I verily believe they are insane enough to look for.