Accidents of a fatal nature are of frightful frequency in the mines. In one year there were three hundred and forty-nine deaths by violence in the coal-mines of England alone. Of the persons thus killed, fifty-eight were under thirteen years of age; sixty-two under eighteen, and the remainder over eighteen. One of the most frequent causes of accidents is the want of superintendence to see the security of the machinery for letting down and bringing up the work-people, and the restriction of the number of persons who ascend or descend at the same time. The commissioners observed at Elland two hurriers, named Ann Ambler and William Dyson, cross-lapped upon a clutch-iron, drawn up by a woman. As soon as they arrived at the top the handle was made fast by a bolt. The woman then grasped a hand of both at the same time, and by main force brought them to land. From all the evidence adduced, the commissioners came to the following conclusions:— "In regard to coal-mines— "That instances occur in which children are taken into these mines to work as early as four years of age, sometimes at five, and between five and six; not unfrequently between six and seven, and often from seven to eight; while from eight to nine is the ordinary age at which employment in these mines commences. "That a very large proportion of the persons employed in carrying on the work of these mines is under thirteen years of age; and a still larger proportion between thirteen and eighteen. "That in several districts female children begin to work in these mines at the same early ages as the males. "That the great body of the children and young persons employed in these mines are of the families of the adult work-people engaged in the pits, or belong to the poorest population in the neighbourhood, and are hired and paid in some districts by the work-people, but in others by the proprietors or contractors. "That there are in some districts, also, a small number of parish apprentices, who are bound to serve their masters until twenty-one years of age, in an employment in which there is nothing deserving the name of skill to be acquired, under circumstances of frequent ill-treatment, and under the oppressive condition that they shall receive only food and clothing, while their free companions may be obtaining a man's wages. "That, in many instances, much that skill and capital can effect to render the place of work unoppressive and healthy and safe, is done, often with complete success, as far as regards the healthfulness and comfort of the mines; but that to render them perfectly safe does not appear to be practicable by any means yet known; while, in great numbers of instances, their condition in regard both to ventilation and drainage is lamentably defective.