increased efficiency of labour is owing to the invention itself, and not to the division of labour.
The greatest advantage (next to the dexterity of the workmen) derived from the minute division of labour which takes place in modern manufacturing industry, is one not mentioned by Adam Smith, but to which attention has been drawn by Mr. Babbage; the more economical distribution of labour, by classing the work-people according to their capacity. Different parts of the same series of operations require unequal degrees of skill and bodily strength; and those who have skill enough for the most difficult, or strength enough for the hardest parts of the labour, are made much more useful by being employed solely in them; the operations which everybody is capable of, being left to those who are fit for no others. Production is most efficient when the precise quantity of skill and strength, which is required for each part of the process, is employed in it, and no more. The operation of pin-making requires, it seems, in its different parts, such different degrees of skill, that the wages earned by the persons employed vary from fourpence halfpenny a day to six shillings; and if the workman who is paid at that highest rate had to perform the whole process, he would be working a part of his time with a waste per day equivalent to the difference between six shillings and fourpence halfpenny. Without reference to the loss sustained in quantity of work done, and supposing even that he could make a pound of pins in the same time in which ten workmen combining their labour can make ten pounds, Mr. Babbage computes that they would cost, in making, three times and three-quarters as much as they now do by means of the division of labour. In needle-making, he adds, the difference would be still greater, for in that, the scale of remuneration for different parts of the process varies from sixpence to twenty shillings a day.
To the advantage which consists in extracting the greatest possible amount of utility from skill, may be added the ana-
