London Labour and the London Poor, Volume IV

London Labour and the London Poor is a work of Victorian journalism by Henry Mayhew. In the 1840s, he observed, documented and described the state of working people in London for a series of articles in a newspaper, the Morning Chronicle, which were later compiled into book form. Mayhew went into deep, almost pedantic detail concerning the trades, habits, religion and domestic arrangements of the thousands of people working the streets of the city. Much of the material comprises detailed interviews in which people candidly describe their lives and work. For instance, Jack Black talks about his job as "rat and mole destroyer to Her Majesty" and remains in good humour despite his experience of a succession of near-fatal infections from bites.Beyond that anecdotal material, Mayhew's articles are particularly notable for attempting to justify numerical estimates with other information, such as census data and police statistics. Thus, if the assertion is made that 8,000 of a particular type of trader operate in the streets, Mayhew compares that to the total number of miles of street in the city, with an estimate of how many traders operate per mile. The articles were collected and published in three volumes in 1851. A fourth "Extra Volume", published in 1861, was co-written with Bracebridge Hemyng, John Binny and Andrew Halliday and covered the lives of streetwalkers, thieves and beggars, but it departed from the interview format to take a more general and statistical approach to its subject.