removed before the switch can be turned—this prevents the machine being started thoughtlessly. Workmen will wear unsuitable clothing—ties that may be caught in a pulley, flowing sleeves, and all manner of unsuitable articles. The bosses have to watch for that, and they catch most of the offenders. New machines are tested in every way before they are permitted to be installed. As a result we have practically no serious accidents.
Industry needs not exact a human toll.