It is proved that the present mode of retaining refuse in the house in cesspools and privies is injurious to the health and often extremely dangerous. The process of emptying them by hand labour, and removing the contents by cartage, is very offensive, and often the occasion of serious accidents. But the expense of this mode operates, as the reports from the large towns show, as a complete barrier to all cleanliness in this respect in the dwellings or streets occupied by the labouring classes. The usual cost of cleansing cesspools of a tenement in London is about 1_l._ each time. With a population generally in debt at the end of the week, and whose rents are collected weekly, such an outlay may be considered as practically impossible, and the inferior landlords delay incurring the expense until the nuisance becomes unbearable. In London the expense and annoyance of the cleansing of such places is avoided for years, until they are in the condition described by _Mr. Howell_, one of the council of the Society of Civil Engineers, who has acted extensively as a surveyor in the metropolis:— “I would,” he states, “instance a recent case in my own parish, where I was called to survey two houses about to undergo extensive repairs. It was necessary that my survey should extend from the garrets to the cellars: upon visiting the latter, I found the whole area of the cellars of both houses were full of night-soil, to the depth of three feet, which had been permitted for years to accumulate from the overflow of the cesspools; upon being moved, the stench was intolerable, and no doubt the neighbourhood must have been more or less infected by it. I should mention, that these houses are letting at from 30_l._ to 40_l._ a-year each, and are situated in a considerable public thoroughfare.