The third kind of work noted by the detached observer is more difficult to define in a word; it consists in the finishing and preparing goods for sale, and in the various kinds of work known as warehouse work. As a separate class it results mainly from the increasing size of firms and the quantity of work done. Paper-sorting or overlooking in paper-mills is typical of this class of work; it consists in separating faulty sheets of paper from those that are good, and is done at great speed by girls who have a quick eye and a light touch. It is said to be work that men entirely fail in, not having sufficiently sensitive finger-tips. In nearly all factories there is a great deal of this kind of work, monotonous no doubt, but usually clean in character, and less hard and involving considerably less strain than either of the two former classes of work. In confectionery or stationery works, for instance, to mention two only, troops of girls are seen busily engaged at great speed in making up neat little packets of the finished article, usually with an advertisement or a picture put inside. In china or glass works girls may be employed wrapping the goods in paper, and similar jobs are found in many classes of work. In a well-known factory in East London where food for pet animals is made or prepared, I was told some years ago that no girls at all had been employed until recently, when about forty were taken on for the work of doing up the finished article in neat packets for sale. It is noticeable that the girls who are thus employed are usually of a social grade superior to the two former classes, though they by no means always earn better wages. They are very frequently the daughters of artisans earning good wages, and expect to marry in their own class and leave work. The women employed in the second class of work indicated, viz. chiefly on or about the machines, are on the whole more enterprising, and more likely to join unions. These again are socially superior to No. 1. No. 1 class, those who do the rough hard kind of work, are mainly employed for the sake of cheapness, are often married women, and are probably doing much the same kinds of work that were done by women in those trades before the transformation of industry by machinery. (This is merely an inference of mine, and can scarcely be proved, but it seems likely to be true.) The more perfectly the industry develops and becomes organised, the more machinery is used and different processes are adapted to utilise different classes of skilled effort, the less need will there be for class No. 1 work to be done at all.