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There was nothing for it now but to obey. Hetty followed slowly and crept up to her own bedroom. Once there, she dropped into a chair, and just for the moment the whole world seemed to be whirling before her sightless eyes.

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Nor did Jeff again cut the gun to listen.

ONE:"It matters a great deal," Lawrence replied. "You want your jewels back----" TWO:VII.

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ONE:I am well aware of the popular opinion that such subjects are too abstruse to be understood by practical mechanics��an assumption that is founded mainly in the fact that the subject of heat and motion are not generally studied, and have been too recently demonstrated in a scientific way to command confidence and attention; but the subject is really no more difficult to understand in an elementary sense than that of the relation between movement and force illustrated in the "mechanical powers" of school-books, which no apprentice ever did or ever will understand, except by first studying the principles of force and motion, independent of mechanical agents, such as screws, levers, wedges, and so on.

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THREE:

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THREE:The detective went calmly on his way to Lytton Avenue. The Countess was not down yet, but if the caller would send up his business it should be attended to. Prout was firm, but his business was for the private ear of the lady of the house alone, and he would wait her good pleasure. He was quite easy in his mind, seeing that he was not alone, but accompanied by two officers in plain clothes, one being stationed in the front of the house and the other at the rear.In Sluys I also got to know by friendly intercourse the character of the Belgians, so open, so straightforward, and so bright.

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THREE:"The detective was sharp enough to get you here," Prout said.

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THREE:��We��re off!�� exulted Dick.

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THREE:Prout felt himself quite capable to account for this matter. He proceeded to lay the whole particulars before a friend in the wholesale silver-plate line--just the kind of article the gang of thieves affected--and so procured the genuine address of a genuine trader for the purposes of the capture.

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THREE:"Give me number--well, I forget the number," she said almost in a whisper. "I want to be put on to the nearest police-station quick."

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ONE:The manager was sympathetic; at the same time he looked at the clock, which was drawing very near to closing time. There was a lull outside in the traffic. Prout took up his hat and prepared to depart.3. The force of the water is greatest by its striking against planes at right angles to its course.

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FORE:(1.) Into what two divisions can a knowledge of constructive mechanics be divided?��(2.) Give an example of your own to distinguish between special and general knowledge.��(3.) In what manner is special knowledge mostly acquired?��(4.) What has been the effect of scientific investigations upon special knowledge?��(5.) What is meant by the division of labour?��(6.) Why have engineering tools been less changed than most other kinds of machinery during twenty years past?��(7.) What is meant by machine functions; adaptation; construction?��(8.) Why has the name "mechanical powers" been applied to screws, levers, wedges, and so on?��(9.) Can power be conceived of as an element or principle, independent of mechanism?So I thought that I might chance it. The house was some distance from the station, near the railway line; opposite stood a sort of goods station guarded by six soldiers. Before entering the house I had a chat with them, for I thought that if I explained my position and told them that the commanding officer gave me permission to pass the night in that house, I should be much safer if anything should happen during the night, because they knew then that they had to deal with a neutral journalist. They might moreover warn me should the fire that was raging all around reach that house. So I told the whole story to these fellows, who were also more than half drunk, showed them my passports, gave them some cigars, and after a friendly chat went123 to the old man who was to put me up for the night.

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FORE:I had a short chat with the wounded men near the various houses, on demand showed my passport to those in authority, and was advised as a friendly Netherlander to return, as it was extremely dangerous on the road. But I did not dream of doing34 this, as long as I was not compelled, and went on towards Li��ge amidst this maddening thunder.The American beauty shook her head and smiled.

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FORE:"Paste?" Lalage gasped. "Paste! Why for their sake--impossible!"I felt very sick, for the sweet rye-bread which I had forced down my throat in the morning did not agree with me at all. At last I felt so ill that I162 was obliged to lie down on the floor of the car, and it took my colleague all his time to convince me that he did not think that my last hour had struck.

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The second includes what is called threading in America and screwing in England. Machines for this purpose consist essentially of mechanism to rotate either the blank to be cut or the dies, and devices for holding and presenting the blanks.Outside Cherath a motor-car stood between some partially removed trees. Two officers and three soldiers stood around a map which they had laid on the ground, and with them was a young girl, scarcely twenty years old. She was weeping, and pointed out something on the map, obviously compelled to give information. One of the officers stopped me, was clearly quite satisfied with my papers, but told me that I was not allowed to go on without a permit from the military command. Then I pulled out of my pocket, as if of great importance, the scrap of paper which the commanding officer at the bridge near Lixhe had given me. The other had scarcely seen the German letters and German stamp when he nodded his head approvingly, and quickly I put the thing back, so that he might not notice that I was allowed only to go to Vis��.III.Cutting, as a process in converting material, includes the force to propel cutting edges, means to guide and control their action, and mechanism to sustain and adjust the material acted upon. In cutting with hand tools, the operator performs the two functions of propelling and guiding the tools with his hands; but in what [58] is called power operations, machines are made to perform these functions. In nearly all processes machines have supplanted hand labour, and it may be noticed in the history and development of machine tools that much has been lost in too closely imitating hand operations when machines were first applied. To be profitable, machines must either employ more force, guide tools with more accuracy, or move them at greater speed, than is attainable by hand. Increased speed may, although more seldom, be an object in the employment of machinery, as well as the guidance of implements or increased force in propelling them. The hands of workmen are not only limited as to the power that may be exerted, and unable to guide tools with accuracy, but are also limited to a slow rate of movement, so that machines can be employed with great advantage in many operations where neither the force nor guidance of tools are wanting.

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