Kendal and Preston canal, speed of boats on, 209 L. Leeds and Selby railroad, 317 Leicester and Swannington railroad, 317 Leupold, his "Theatrum Machinarum," 116. His engine described, 147 Liquids converted into vapour by the application of heat, 27. Difference of temperatures of, 35 Liverpool and Manchester railroad, effects of the introduction of steam transport on, 152. Want of experience in the construction of the engines, 154. Proceedings of the directors, 167. Premium offered by them for the best engine, 169. Experiments made on, 183. Passengers the chief source of profit to the proprietors, 204 Liverpool and London, supposed advantages from the connexion of these places by railroad, 206 Llangennech coal, its economy, 267 Locomotive engines, description of the "Rocket," 171. The "Sanspareil," 173. The "Novelty," 175. Mr. Booth's method of using tubes to conduct heated air through boilers, 177. Mr. Stephenson's method of subdividing the flue, 179. Amount of fuel consumed in, 180. Progressive improvement of, 180. Description of an improved form of engine, 181. Circumstances on which their efficiency depends, 183. Experiments with, on Liverpool and Manchester railroad, 184. Defects of, 186. Improvement in the method of tubing, 188. Proposed methods for working them on levels and inclined planes, 194. Extraordinary speed and power of, 204. Their introduction on turnpike roads, 213 Locomotive power, expense of, 188 Locomotive boilers, improved form of, 177 M. Machines, definition of, 19 Manufactures, motions required in, 19 Morgan, Mr., his patent paddle-wheel, 259 Morland, Sir Samuel, his application of steam to raise water, 47 Motion, a primary agent in the cultivation of cotton, 18. Variety of, 19 Murray, Mr., description of his suggested slide valve, 113 N. Newcomen, Thomas, and John Cawley, turn their attention to the practicability of applying steam engines to the drainage of mines, 61 Newcomen, Thomas, his construction of the atmospheric engine, 63 "Novelty," description of the, 175 O. Ogle, Mr., his steam carriage, 239 Oldham, Mr., his modification of the self-regulating furnace, 132 P. Paddle-wheel, the common one, 257. Mr. Morgan's patent one, 259 Papin, Denis, his contrivance, by which atmospheric pressure is rendered available as a mechanical agent, 48. Description of his steam engine, 71 Parallel motion, description of the, 95 Piston, its velocity, 302 Post-office steam packets, their speed, 268 Potter, Humphrey, his contrivance for working the valves, 67 Power of a steam engine, how estimated, 291 R.