To-day I take up again the report of our experiences here, which I began a week ago. You will readily imagine that my father and I were both full of curiosity to see the town. Guessing this, Mr. Ney next morning invited us to join him and his son on a tour round Eden Vale. The carriage was already waiting! It was a light and elegant vehicle with steel wheels like those of a velocipede, and with two seats each comfortably accommodating two persons. As we, in response to David's signal, exhibited some hesitation and made no effort to get into the vehicle, David perceived that we missed--the horses! He explained to us that in Freeland, and particularly in the towns, the use of animals to draw vehicles was for many reasons given up in favour of mechanical power, which was safer, cleaner, and also cheaper. This vehicle was a kind of _draisine_, and the driver, whose place is on the right side of the front seat, has nothing to do but to press lightly downwards upon a small lever at his right hand, in order to set the machine in motion, the speed depending upon the strength of the pressure. The upward motion of the lever slacks the speed or brings the vehicle to a standstill; while a turning to right or left is effected by a corresponding rotary motion of the same lever. The motive power is neither steam nor electricity, but the elasticity of a spiral spring, which is not inseparably attached to the vehicle, but can be inserted or removed at will. 'The cylindrical box, a little over half a yard long and about eight inches deep, here over the front axle,' demonstrated my friend, 'contains the spiral spring. Before being used the spring is wound up and that very tightly--an operation which is effected by steam-engines in the workshops of the Association for Transport, the energy present in the steam being thus converted into the energy of the tension of the spring. The power thus laid up in the spring is transferred to the axle by a very simple mechanism, and is sufficient to make the wheel revolve ten thousand times even if the vehicle is tolerably heavily loaded; and as the wheel has a circumference of about six feet and a half, the spring will carry the vehicle a distance of about twelve miles and a half. The speed depends, on the one hand, upon the load in the vehicle, and on the other hand upon the amount of pressure upon the regulating lever. The maximum speed attained by these ordinary _draisines_, on a good road and with a moderate load, is two and a half revolutions--that is, about thirteen feet--in the second, or a little over eleven miles an hour. But we have what are called racing carriages with which we can attain nearly twice that speed. The force of the spring is exhausted when the wheel has made ten thousand revolutions, which in slow travelling occurs in from one and a quarter to one and a half hours. On longer or more rapid journeys provision must therefore be made for sufficient reserve force, and this is done in various ways.