Lamb in the 1820s and Dickens in the 1830s had written about some of those who made their living or advertised their services in the streets of London: beggars, chimney sweeps, cab drivers, the vendors of baked potatoes and kidney pies. When, in the late forties, Henry Mayhew began his extensive study of the street-folk, he found reason to cite both these chroniclers. London Labour and the London Poor, however, is an enterprise different in kind from the essays and sketches it occasionally quotes. Somehow, in the middle years of the nineteenth century, the street-folk became a subject worth four volumes and sixteen hundred pages.The decision to devote so much attention to the people of the streets came at a crisis-point in Mayhew's journalistic career. He had undertaken for the Morning Chronicle (1849) a comprehensive study of the metropolitan poor. Defining the poor as “those persons whose incomings are insufficient for the satisfaction of their wants,” Mayhew proposed to discuss them “according as they will work, they can't work, and they won't work.” He had progressed part way through the first of these classifications when he quarrelled with the editors of the Chronicle and ended by severing his ties with them. On his own, Mayhew commenced the publication in parts of London Labour. The “will, can't, won't” division, which persists in these volumes, was supplemented or perhaps superseded by another. Mayhew's ultimate object was still to study all the London poor but he now began with a trade-by-trade survey of the street-folk.