certainty and calculable effect as are the motions of those mechanical appliances by whose use the minerals are handled. The sequence of the process involves both the one and the other, both the apparatus and the materials, in such intimate interaction that the process cannot be spoken of simply as an action of the apparatus upon the materials. It is not simply that the apparatus reshapes the materials; the materials reshape themselves by the help of the apparatus. Similarly in such other processes as the refining of petroleum, oil, or sugar; in the work of the industrial chemical laboratories; in the use of wind, water, or electricity, etc.
Wherever manual dexterity, the rule of thumb, and the fortuitous conjunctures of the seasons have been supplanted by a reasoned procedure on the basis of a systematic knowledge of the forces employed, there the mechanical industry is to be found, even in the absence of intricate mechanical contrivances. It is a question of the character of the process rater than a question of the complexity of the contrivances employed. Chemical, agricultural, and animal industries, as carried on by the characteristically modern methods and in due touch with the market, are to be included in the modern complex of mechanical industry.[1]
- ↑ Even in work that lies so near the fortuities of animate nature as dairying, stock-breeding, and the improvement of crop plants,
