For every one of the lives of these 15,000 persons who have thus perished during the last quarter, and who might have been saved by human agency, those are responsible whose proper office it is to interfere and endeavour to stay the calamity--who have the power to save, but who will not use it. But their apathy is an additional reason why you should rouse yourselves, and show that you will submit to this dreadful state of things no longer. Let a voice come from your streets, lanes, alleys, courts, workshops, and houses that shall startle the ear of the public and command the attention of the Legislature. The time is auspicious for the effort; it is a case in which it is right that you should take a part, in which you are bound to take a part, in which your own interests and the wellbeing of those most dear to you require you to take a part. The Government is disposed to espouse your cause; but narrow, selfish, short-sighted interests will be banded against you. Petition both Houses of Parliament. Call upon the instructed and benevolent men in the legislative body to sustain your just claim to protection and assistance. Petition Parliament to give you sewers; petition Parliament to secure to you constant and abundant supplies of water--supplies adequate to the unintermitting and effectual cleansing both of your sewers and streets; petition Parliament to remove--for it is in the power of Parliament universally and completely to remove--the sources of poison that surround your dwellings, and that carry disease, suffering, and death into your homes. Tell them of the parish of St Margaret, in Leicester, with a population of 22,000 persons, almost all of whom are artisans, and where the average age of death in the whole parish was during the year 1846 only eighteen years; tell them that on taking the ages of death in the different _streets_ in this parish, it was found that in those streets that were drained (and there was not a single street in the place properly drained) the average age of death was twenty-three and a-half years; that in the streets that were partially drained it was seventeen and a-half years; while in the streets that were entirely undrained it was only thirteen and a-half years.