On the remediable evils attending the life of the people : engaged in professions, commerce, trade, and labour : embracing the causes of illness and premature death : the moral, social and commercial evils arising from protracted application to business, imperfect ventilation, and supply of water, light, &c. : and suggestions for ameliorating the condition of the productive classes : for a national system of education, for superintending the interest of the people, and for employing and training criminals /