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FORE:5. The boiler is the main part, where power is generated, and the engine is but an agent for transmitting this power to the work performed.The systems of Plato and Aristotle were splendid digressions from the main line of ancient speculation rather than stages in its regular development. The philosophers who came after them went back to an earlier tradition, and the influence of the two greatest Hellenic masters, when it was felt at all, was felt almost entirely as a disturbing or deflecting force. The extraordinary reach of their principles could not, in truth, be appreciated until the organised experience of mankind had accumulated to an extent requiring the application of new rules for its comprehension and utilisation; and to make such an accumulation possible, nothing less was needed than the combined efforts of the whole western world. Such religious, educational, social, and political reforms as those contemplated in Plato��s Republic, though originally designed for a single city-community, could not be realised, even approximately, within a narrower field than that offered by the mediaeval church and the feudal state. The ideal theory first gained practical significance in connexion with the metaphysics of Christian theology. The place given by Plato to mathematics has only been fully justified by the develop2ment of modern science. So also, Aristotle��s criticism became of practical importance only when the dreams against which it was directed had embodied themselves in a fabric of oppressive superstition. Only the vast extension of reasoned knowledge has enabled us to disentangle the vitally important elements of Aristotle��s logic from the mass of useless refinements in which they are imbedded; his fourfold division of causes could not be estimated rightly even by Bacon, Descartes, or Spinoza; while his arrangement of the sciences, his remarks on classification, and his contributions to comparative biology bring us up to the very verge of theories whose first promulgation is still fresh in the memories of men.

FORE:"Well, what is it you want tonight?" she demanded, haughtily.No subject connected with mechanics has been more thoroughly investigated than that of gearing. Text-books are replete with every kind of information pertaining to wheels, at least so far as the subject can be made a mathematical one; and to judge from the amount of matter, formul?, and diagrams, relating to the teeth of wheels that an apprentice will meet with, he will no doubt be led to believe that the main object of modern engineering is to generate wheels. It must be admitted that the teeth of wheels and the proportions of wheels is a very important matter to understand, and should be studied with the greatest care; but it is equally important to know how to produce the teeth in metal after their configuration has been defined on paper; to understand the endurance of teeth under abrasive wear when made of wrought or cast iron, brass or steel; how patterns can be constructed from which correct wheels may be cast, and how the teeth of wheels can be cut [52]by machinery, and so on.

FORE:"You shall have it," she said suddenly. "How you got to know so much of my history you shall tell me presently. But the tuberose is yours.""How good of you to come," the Countess said. "Sit down and let me wait upon you--there is no need at all to ring for the servants. You can talk and eat at the same time. There! I will give you some of the cigarettes you are so fond of."