The vices of the cities of London and Westminster [electronic resource] : Trac'd from their original. Being an impartial detection of the true cause and source of the present growth of immorality, and the prodigious number of thefts and robberies daily commiteed in the streets, &c. of this metropolis. With some rational hints proposed for removing those evils, restoring the morals of the people, and securing our persons and properties against the outrages of these villains. In five letters, from a citizen of London to a Member of Parliament.