The roads and railroads, vehicles, and modes of travelling, of ancient and modern countries; with accounts of bridges, tunnels, and canals, in various parts of the world

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Page 298 - That as they admit of greater breadth of tire than other carriages, and as the roads are not acted on so injuriously as by the feet of horses in common draught, such carriages will cause less wear of roads than coaches drawn by horses. 9. That rates of toll have been imposed on steam carriages, which would prohibit their being used on several lines of road, were such charges permitted to remain unaltered.
Page 5 - tis the twanging horn ! o'er yonder bridge That with its wearisome but needful length Bestrides the wintry flood, in which the moon Sees her unwrinkled face reflected bright ; He comes, the herald of a noisy world. With spattered boots, strapped waist, and frozen locks. News from all nations lumbering at his back.
Page 263 - It has increased indefinitely the mass of human comforts and enjoyments, and rendered cheap and accessible all over the world the materials of wealth and prosperity. It has armed the feeble hand of man, in short, with...
Page 298 - That at this rate they have conveyed upwards of fourteen passengers. 3. That their weight, including engine, fuel, water and attendants, may be under three tons. 4. That they can ascend and descend hills of considerable inclination with facility and safety. 5. That they are perfectly safe for passengers. 6. That they are not (or need not be, if properly constructed) nuisances to the Public. 7. That they will become a speedier and cheaper mode of conveyance than Carriages drawn by horses.
Page 263 - It can engrave a seal, and crush masses of °obdurate metal before it, — draw out, without breaking, a thread as fine as "gossamer, and lift up a ship of war, like a bauble, in the air. It can embroider muslin, and forge anchors, — cut steel into ribands, and impel loaded vessels against the fury of the winds and waves.
Page 85 - ... weather. In the formation of such roads, and before they become bound or firm, a considerable portion of the subsoil mixes with the stone or gravel, in consequence of...
Page 311 - ... so vast as to rend a cable asunder. Hydrogen gas and high-pressure steam; columns of water and columns of mercury ; a hundred atmospheres, and a perfect vacuum ; machines working in a circle without fire or steam, generating power at one end of the process and giving it out at the...
Page 263 - By his admirable contrivances it has become a thing stupendous alike for its force and its flexibility, for the prodigious power which it can exert, and the ease and precision and ductility with which it can be varied, distributed, and applied. The trunk of an elephant, that can pick up a pin, or rend an oak, is as nothing to it.
Page 172 - Highlands accessible, contributed much to their present improvement, and were owing to the industry of our soldiery; they were begun in 1723, under the directions of General Wade, who, like another Hannibal, forced his way through rocks supposed to have been unconquerable: many of them hang over the mighty lakes of the country, and formerly afforded no other road to the natives than the paths of sheep or goats, where even the Highlander crawled with difficulty, and kept himself from tumbling into...
Page 264 - As an example of the difficulties of internal navigation, it may be mentioned that, on the great river Mississippi, which flows at the rate of five or six miles an hour, it was the practice of a certain class of boatmen, who brought down the produce of the interior to New Orleans, to break up their boats, sell the...

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