"Thanks to the menial services of wind and water, a large intelligentsia could come into existence, and great works of art and scholarship and science and engineering could be created without recourse to slavery: a release of energy, a victory for the human spirit. Measuring gains not in horsepower originally used but in work finally accomplished, the eotechnic period compares favorably both with the epochs that preceded it and with the phases of mechanical civilization that followed it. When the textile industries attained an unheard of volume of production in the eighteenth century it was by means of water power, not the steam engine, that this was first achieved; and the first prime mover to exceed the poor five or ten per cent efficiency of the early steam engines was Fourneyron's water-turbine, a further development of the Baroque spoonwheel, perfected in 1832. By the middle of the nineteenth century water-turbines of 500 H.P. had been built. Plainly, the modern industrial revolution would have come into existence and gone on steadily had not a ton of coal been dug in England, and had not a new iron mine been opened."