We have, however, a great many more divisions of employment to follow out before the wool is conveyed from Wales to Leeds or Bradford. If the packs are taken on shipboard, and carried down the Mersey to Liverpool, we have all the variety of occupations, involving different degrees of skill, which make up the life of a mariner; if they go forward upon the railroad to Manchester, we have all the higher degrees of skill involved in their transport which belong to the business of an engineer; or if they finally reach their destination by canal, we have another division of labour that adjusts itself to the management of boats in canals. But the ship, the railroad, the canal, which are created by the necessity of transporting commodities from place to place, have been formed after the most laborious exercise of the highest science, working with the greatest mechanical skill; and they exist only through the energy of prodigious accumulations of capital, the growth of centuries of patient and painful labour and economy. We have at length the wool in a manufactury at Leeds or Bradford. The first class of persons who prepare the wool, are the sorters and pickers. It is their business to separate the fine from the coarse locks, so that each may be suited to different fabrics. There is judgment required, which could not exist without division of labour; and the business, too, must be done rapidly, or the cost of sorting and picking would outweigh the advantage. The second principal operation is scouring. Here the men are constantly employed in washing the wool, to free it from all impurities. It is evident that the same man could not profitably pass from the business of sorting to that of scouring, and back again,--from dry work to wet, and from wet to dry. When the wool is out of the hands of the scourers it comes into those of the dyers, who colour it with the various chemical agents applied to the manufacture. The carders next receive it, who tear it with machines till it attains the requisite fineness. From the carders it passes to the slubbers, who form it into tough loose threads; and thence to spinners, who make the threads finer and stronger. There are subdivisions of employment which are not essential for us to notice, to give an idea of the great division of employment, and the consequent accumulation of peculiar skill, required to prepare wool to be made into yarn, to be made into woollen cloth. The next stages in the manufacture are the spinning, the warping, the sizing, and the weaving. These are all distinct operations, and are all carried forward with the most elaborate machinery, adapted to the division of labour which it enforces, and by which it is enforced.