A fourth point, very closely allied to protection of intercourse, but which has to be dealt with protectively by those judicial rulings on protection of contract, concerns the permanence of rate of wage, the day, place, and period of payment, and by whom, and to whom, payments are to be made. Protection of payment may be more completely secured by the inclusion in the working rules of directions on these points. It must be applied to the whole of industrial wage-labour according to circumstances. The prohibition of payment of wages in public-houses and on Saturdays, the fixing of the wage by the employer himself, not by a subordinate official; the obligation to make the agreement as to "efficiency wage" at the time of undertaking the work, in order that the bargain may not be broken off should it prove specially favourable for the workers; also payment of wage at least weekly or fortnightly; and lastly, the payment of minors' wages into the hands of parents or guardians, which constitutes a measure of educational protection of the minors against themselves--such are the principal requirements of protection of payment of wages, requirements which are already more or less fulfilled. FOOTNOTE: [13] That is, _after the largest portion of it_. CHAPTER IX. THE RELATIONS OF THE VARIOUS BRANCHES OF LABOUR PROTECTION TO EACH OTHER. If the various chief branches of Labour Protection are compared with each other after they have all been examined separately, they appear to be indispensable and inseparable members of one system, for no one branch can be spared. But they are very different in nature, and by no means equal in importance. Protection of truck and contract have long ago reached their full development. Both are almost universal in their extension, and are exercised by the regular administrative courts and petty courts of justice. They are characterised on the whole by legal precision, which affords little room for interpretation and extension at the will of the administration. Protection of contract and protection of intercourse are required less in the immediate interest of the whole State than in that of individuals. But when we come to protection in occupation, it is altogether another matter.