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If she can hear herself think amid that din of blasting and hammering she must be reckoning up the years to elapse before the cleverest of Ober- Ingenieurs decides that mountains are mere obstructive matter and has the Jungfrau melted down and the residuum carried away in balloons and dumped upon another planet.
M. Arson, engineer to the Paris Gas Company, published in 1867, in the Memoires de la Societe des Ingenieurs Civils de France, the results of some experiments on the loss of pressure in gas when passing through pipes. He employed cast-iron pipes of the ordinary type.
M. Maillet and M. Dufourny, Belgian Ingénieurs des Ponts et Chaussées, who watched the trials, conclude that a practical solution of the question depends upon the cost of producing the motive power; but they also consider that horse haulage on canals will soon be superseded by mechanical traction, based on the use of an automotive tricycle, working with petroleum or some other hydrocarbon, and capable of running on the tow path without requiring any fixed plant.
Extra-scholars, with testimonials of good behaviour and capacity, are admitted to be educated at their own expense. These schools are also under the authority of the Minister of the Interior. The School of Naval Architects, which existed in Paris, has been removed to Brest, under the name of Ecole des Ingenieurs des Vaisseaux.
A narrative of some of these attempts has been presented to the Societe des Ingenieurs Civils; mostly taken in the first place from Stuart's work upon the origin of the steam engine, published in 1820, and now somewhat scarce. In 1807 De Rivaz applied the same idea in a different manner. He employed a cylinder 12 centimeters in diameter fitted with a piston.
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