We come now to consider the meaning of the various headings under which _personal_ protection falls. _Juvenile Workers._ Juvenile workers of both sexes have long been subject to protection, and this kind of protection is gradually spreading all over Europe, and in more and more extended proportions. We must first ascertain what is the exact meaning of the term juvenile workers as used in the labour-protective laws. In contrast to juvenile labour stands adult labour, or more accurately adult male labour, since adult women--not of course as adults but as women--are placed more or less on the same footing as juvenile workers in the matter of protective legislation. The distinction between adult wage-labour and juvenile wage-labour, and the subdivision of the latter into infant-labour, child-labour, and the labour of "young persons," is not of importance in all departments of labour protection, but it is of the utmost importance in _protection of employment_, especially in prohibition of employment on the one hand, and restriction of employment on the other. This prohibition and restriction of juvenile employment does not apply to all industries, but only to certain branches of industry and kinds of work, and to specially dangerous occupations. In order to determine exactly what is meant by infant-labour, child-labour, and the labour of "young persons," we must consider the inferior limit of age below which there is a partial prohibition of employment, and the superior limit of age beyond which labour is treated as adult labour as regards protection, receiving none, or only a very limited measure of it. The inferior limit does not as yet coincide with the beginning of school duties, nor does the superior limit coincide with the attainment of majority as recognised by common law. "Juvenile labour"--permitted but restricted--stands midway between infant-labour, altogether prohibited in some branches of industry, and adult labour, permitted and unrestricted, or only slightly restricted; and within the inferior and superior limits of age it is divided into child-labour and labour of "young persons."