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TWO:Even the very imperfect means of information supplied by the literature of the empire were not utilised to the fullest extent. It was naturally the writers of most brilliant genius who received most attention, and these, as it happened, were the most prejudiced against their contemporaries. Their observations, too, were put on record under the form of sweeping generalisations; while the facts from which a different conclusion might be gathered lay scattered through the pages of more obscure authorities, needing to be carefully sifted out and brought together by those who wished to arrive at a more impartial view of the age to which they relate."Where are the diamonds?" he asked. "Tell me that, rascal!" THREE:It is a lamentable sign that this German, probably well educated, had not taken the slightest trouble to find out the reason for this wholesale wrecking of a town, that the whole affair impressed him so little. "Somebody" had said that those cursed civilians had been shooting, that explained it to his satisfaction, and gave him ample cause for coarse abuse of the wretched people. THREE:Considered as means for transmitting power, the contrast as to advantages and disadvantages lies especially between belts and gearing instead of between belts and shafts. It is true in extreme cases, such as that cited at Crewe, or in conveying water-power from inaccessible places, through long distances, the comparison lies between belts and shafts; but in ordinary practice, especially for first movers, the problem as to mechanism for conveying power lies between belts and gear wheels. If experience in the use of belts was thorough, as it is in the case of gearing, and if the quality of belts did not form so important a part in the estimates, there would be but little difficulty in determining where belts should be employed and where gearing would be preferable. Belts are continually taking the place of gearing even in cases where, until quite recently, their use has been considered impracticable; one of the largest rolling mills in Pittsburg, Pennsylvania, except a single pair of spur wheels as the last movers at each train of rolls, is driven by belts throughout.