FORE:The cool morning air was grateful after the stuffy atmosphere of the corner house. Here was an adventure to think about and ponder over. Strange coincidence that he of all men should have been called there! It never occurred to Bruce that the thing could be anything but coincidence.Engines operated by means of hot air, called caloric engines, and engines operated by gas, or explosive substances, all act substantially upon the same general principles as steam-engines; the greatest distinction being between those engines wherein the generation of heat is by the combustion of fuel, and those wherein heat and expansion are produced by chemical action. With the exception of a limited number of caloric or air engines, steam machinery comprises nearly all expansive engines that are employed at this day for motive-power; and it may be safely assumed that a person who has mastered the general principles of steam-engines will find no trouble in analysing and understanding any machinery acting from expansion due to heat, whether air, gas, or explosive agents be employed.
FORE:The duration of the war has more or less surprised me, and I postponed writing this book for a long time as I wished to quote the evidence of persons in high places, clergymen, and educated foreigners. As the war is not over yet, I must omit these in the interest of their safety.The seaplane is almost down on the waterand coming like an arrow toward that white preserver! gasped Dick. Will its wings hit the yacht?
FORE:CHAPTER IV. THE CONDITIONS OF APPRENTICESHIP.
THREE:"Von Buelow."Handling and moving material is the principal matter to be considered in the arrangement of engineering works. The constructive manipulation can be watched, estimated, and faults detected by comparison, but handling, like the designs for machinery, is a more obscure matter, and may be greatly at fault without its defects being apparent to any but those who are highly skilled, and have had their attention especially directed [73] to the matter.
THREE:"Well," Prout said thoughtfully, "seeing that you were traced to Lytton Avenue, I suppose that you found her there?"VI.
