http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
being selections from 'London labour and the London poor' (which was first published in 1851)
"Abridged edition ... derived from the three-volume edition of 1861; the contents of a fourth volume, published in 1862, on prostitutes, thieves, swindlers and beggars, have been omitted in entirety."