THREE:An apprentice must guard against the too common impression that the engine, cylinder, piston, valves, and so on, are the main parts of steam machinery, and that the boiler and furnace are only auxiliaries. The boiler is, in fact, the base of the whole, that part where the power is generated, the engine being merely an agent for transmitting power from the boiler to work that is performed. This proposition would, of course, be reached by any one in reasoning about the matter and following it to a conclusion, but the fact should be fixed in the mind at the beginning.
THREE:The permanent contraction of steel in tempering is as the degree of hardness imparted to it by the bath.
THREE:"It's the fifth house," she said. "I shall trust to chance that the people are in bed. If not, I dare say I shall have a good tale to tell."
TWO:The Cyrenaic school ended, curiously enough, in pessimism. The doctrine that pleasure is the only good, and the doctrine that life yields a preponderance of painful over pleasurable feelings, are severally compatible with a preference of existence to non-existence; when united, as they were by Hgsias, a Cyrenaic professor, they logically lead to suicide; and we are told that the public authorities of Alexandria were obliged to order the discontinuance of his lectures, so great was their effect in promoting self-destruction.124In this grand old monastery, both inside and out a jewel of architecture, about five hundred people had found shelter. They were lodged in halls, rooms, and kitchens. The fathers gave them everything in the way of food they might require, but they had to do their own cooking. As not one of these people had a home left, which they could call their own, no wonder that they greatly admired the fathers. Often when I strolled about with one of these, one or other of the refugees came to him to press his hand and express gratitude for the hospitality offered.
TWO: