Labour Protection equally with compulsory insurance, from which it is however quite distinct, does not preclude the voluntary efforts which are made in addition to legal measures, nor the help rendered by savings-banks, by private liberality and benevolence, by family help, and by various municipal and state charitable institutions; and it does not render unnecessary the exercise of the ordinary administration, and the co-operation of the latter in the work of establishing security of labour. The general impression derived from a study of this survey will be confirmed if we further examine into the scope, legislative methods, and organisation of the separate measures of Labour Protection, in addition to the classification of industrial wage-labour, as dealt with by protective legislation, which I attempted in Chapter II., and if we bear in mind the great differences in the degree of protection extended to the separate classes of protected workers. CHAPTER IV. MAXIMUM WORKING-DAY. In considering the question of protection of employment, we must first touch upon the restrictions of employment. These restrictions are directed to granting short periods of intermission of work, _i.e._ to the regulation of hours of rest, of holidays, night-rest and meal-times; also to the regulation of the maximum duration of the daily working-time, inclusive of intervals of rest, _i.e._ to protection of hours of labour. Protection of times of rest, and protection of working-time, are both based on the same grounds. It is to the interest of the employer to make uninterrupted use of his business establishment and capital, and therefore to force the wage-worker to work for as long a time and with as little intermission as possible. The excessive hours of labour first became an industrial evil through the increasing use of fixed capital, especially with the immense growth of machinery; partly this took the form of all-day and all-night labour, even in cases where this was not technically necessary, and partly of shortening the holiday rest and limiting the daily intervals of rest; but more than all it came through the undue extension of the day's work by the curtailment of leisure hours. Moral influence and custom no longer sufficed to check the treatment of the labourer as a mere part of the machinery, or to prevent the destruction of his family life. A special measure of State protection for the regulation of hours of labour was therefore indispensable. Protection of the hours of labour is enforced indirectly by regulating the periods of intermission of labour: meal-times, night work, and holidays. But it may be also completed and enforced directly by fixing the limits of the maximum legal duration of working-hours within the astronomical day. This is what we mean by the maximum working-day.