Class similar to the Chiffoniers found in English towns 94 Their personal habits 95 Collateral benefit of more effectual cleansing of towns in diminishing degrading employments 96 III. CIRCUMSTANCES CHIEFLY IN THE INTERNAL ECONOMY AND BAD VENTILATION OF PLACES OF WORK; WORKMEN’S LODGING-HOUSES, DWELLINGS, AND THE DOMESTIC HABITS AFFECTING THE HEALTH OF THE LABOURING CLASSES. 98 Various effects of overcrowding places of work, as shown in the case of one class of workmen 98 Comparative ease and economy of measures of prevention rather than of relief 104 Sanitary effects of ventilation on workpeople at Glasgow 107 Effects of defective ventilation on the health of milliners and dressmakers in the metropolis 107 Instances of the effects of defective ventilation of sleeping rooms of the working classes 108 Effects of the defective economy of lodging-houses and places of repose exemplified in the duration of life of one class of workmen 112 Instances of errors in respect to the sanitary effects of particular occupations 113 Injurious effects of deficient ventilation in schools 119 _Bad ventilation and overcrowding private houses._ 120 Great apparent increase in the proportionate number of houses according to the last census attributable to a different mode of making the return 120 Instances of great overcrowding in cottages in— Greenock, 121; Tranent, 121; Sleaford union 122 _The want of separate apartments and overcrowding of private dwellings._ 122 Effects of the overcrowding of private dwellings on the morals of the population, instances of, in— The Ampthill union, 122; the Leighton Buzzard union, 123; the Bicester union, 123; the Romsey union, 123; among the border peasantry, 124; in Manchester, Liverpool, Ashton-under-Lyne, and Hull, 124; in Leeds, 126; in Nottingham, 126; in Clitheroe 126 Instances of the injurious influences of bad tenements upon the personal condition and moral habits of the inmates 128 Effects of noxious agencies in preventing frugality and promoting intemperance 129 In preventing the influence of education 132