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wholly derived from improvements in specific skill or in the application of specific mechanical invention. The earlier eighteenth century did indeed display an abnormal activity in these specific forms of invention. For examples of these it is only necessary to allude to Lombe's silk mill at Derby, the pin factory made famous by Adam Smith, Boulton's hardware factory at Soho, and the renowned discoveries of Wedgwood. But all increased productivity due to these specific improvements was but slight compared with that which followed the discovery of steam as a motor and the mechanical inventions rendering it generally applicable, which marked the period 1790 to 1840. By this means the several specific industries were drawn into closer unity, and found a common basis or foundation in the arts of mining, iron-working, and engineering which they lacked before.

      From these considerations it will follow that the order in which the several industries has fallen under the sway of modern industrial methods will largely depend upon the facility they afford to the application of steam-driven machinery. The following are some of the principal characteristics of an industry which determine the order, extent, and pace of its progress as a machine industry:—

      (a) Size and complexity of Structure.—The importance of the several leading textile manufactures, the fact that some of them were highly centralised and already falling under a factory system, the control of wealthy and intelligent employers, were among the chief causes which enabled the new machinery and the new motor to be more quickly and successfully applied than in smaller, more scattered, and less developed industries.

      (b) Fixity in quantity and character of demand.—Perfection of routine-work is the special faculty of machine-production. Where there is a steady demand for the same class of goods, machinery can be profitably applied. Where fashion fluctuates, or the individual taste of the consumer is a potent factor, machinery cannot so readily undertake the work. In the textile industries there are many departments which machinery has not successfully invaded. Much lace-making, embroidery, certain finer weaving is still done by human power, with or without the aid of complex machinery. In the more skilled branches of tailoring, shoe-making, and other clothing trades, the individual character of the demand—i.e., the element of irregularity—has limited the use of machinery. A similar cause retains human motor-power in certain cases to co-operate with and control complex machinery, as in the use of the sewing-machine.

      (c) Uniformity of material and of the processes of production.—Inherent irregularity in the material of labour is adverse to machinery. For this reason the agricultural processes have been slow to pass under steam-power, especially those directly concerned with work on the soil, and even where steam-driven machines are applied their economy, as compared with hand labour, is less marked than in manufacturing processes. To the getting of coal and other minerals steam and other extra-human power has been more slowly and less effectively applied than in dealing with the matter when it is detached from the earth.

      (d) Durability of valuable properties.—The production of quickly perishable articles being of necessity local and immediate demands a large amount of human service which cannot economically be replaced or largely aided by machinery. The work of the butcher and the baker have been slow to pass under machinery. Where butchering has become a machine-industry to some extent, the direct cause has been the discovery of preservative processes which have diminished the perishability of meat. So with other food industries, the facility of modern means of transport has alone enabled them gradually to pass under the control of machinery. Until quite recently cakes and the finer forms of bakery were a purely local and handicraft product.

      (e) Ease or simplicity of labour involved.—Where abundance of cheap labour adequate to the work can be obtained, and particularly in trades where women and children are largely engaged, the development of machinery has been generally slower. This condition often unites with (b) or (c) to retain an industry in the "domestic" class. A large mass of essentially "irregular" work requiring a certain delicacy of manipulation, which by reason of its narrowness of scope is yet easily attained, and which makes but slight demands upon muscular force or intelligence, has remained outside machine-production. Important industries containing several processes of this nature have been slower to fall into the complete form of the factory system. The slow progress of the power-loom in cotton and wool until after 1830 is explained by these considerations. The stocking-frame held out against machinery still longer, and hand work still plays an important part in several processes of silk manufacture. Even now, in the very centre of the factory system, Bolton, the old hand-weaving is represented by a few belated survivors.[82]

      (f) Skilled Workmanship.—High skill in manipulation or treatment of material, the element of art infused into handicraft, gives the latter an advantage over the most skilful machinery, or over such machinery as can economically be brought into competition with it. In some of the metal trades, in pottery and glass-making there are many processes which have not been able to dispense with human skill. In these manufactures, moreover, more progress is attributable to specific inventions than to the adoption of the common machinery and motor-power which are not largely available in the most important processes.

      From these considerations it will appear that where an industry is large and regular in character, it falls more readily and completely under the control of machinery, where it is small and irregular it conforms more slowly and partially to the new methods. Most of the extractive industries of agriculture, stock-raising, fishing, mining, hunting, are irregular by reason of the nature of their material and its subjection to influences, geological, chemical, climatic, and others which are but slightly under calculation or human control. The final processes by which commodities are adapted to the use of individual consumers necessarily partake of the irregularity or variety of human tastes and desires. We shall therefore find most regularity in the intermediate processes where the raw materials, having been extracted from nature, are being endowed with those qualities of shape, position, etc., which are required to enable them to satisfy human wants. The manufacturing stages where machinery finds fullest application are in nearly all cases intermediate stages of production. Even where machine-production seems directly to satisfy some human want, there are commonly some final processes required which involve individual skill. Almost all products which satisfy the desires of man pass through a large number of productive processes which may be classed as extractive, transport, manufacturing, and distributive. These are, of course, not in all cases clearly distinguishable. Mixed with the extractive processes of mining and wheat-raising are several processes of transport and manufacture: the various stages of manufacture may be broken by stages of transport: a final process of manipulation or manufacture may precede the final act of distribution, as in the sale of drugs to the consumer. But, generally speaking, these four kinds of productive processes mark four historic stages in the passage from raw material to finished commodity.

      The two middle stages of transport and manufacture have fallen far more fully under the control of steam-driven machinery than the others, and it is in the elaboration of older manufacturing and transport processes and the addition of new processes that we trace the largest effects of the evolution of modern industrial methods.

      The following list of the divisions under which workers engaged in the production of material wealth are classified for purposes of the census may serve to bring out more clearly this proportionate development of machinery. The figures appended give the numbers engaged in the several occupations in 1891, and serve to approximately indicate the relative importance of the several principal branches of industry:—

Agriculture 1,311,720
Fishing 25,225
Mining 561,637
Stone, clay, road-making 209,972
Transport—
(a) Railways 186,774
(b)

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