On we flew down the walled-in track, passing numerous other canals equally as broad, flowing into it, until within ten minutes a faint gray light appeared. It was daylight, and in a few moments sunlight crowned the banks on either side of us. Even as I looked the sun itself appeared, and in the space of fifty seconds it was high in the heavens. In fifteen minutes we had covered almost a quarter of the globe, and now it was the middle of the afternoon. The importance of having speedways in which to confine aerenoids, travelling at the terrific velocity of one hundred miles a minute, was obvious, and what could be better adapted to the purpose than these magnificent waterways, which completely cover the surface of the planet with such geometrical exactness, that they have always been a source of great wonder to astronomers on Earth. Thousands and thousands of years old, the method of constructing this gigantic system of canals remains enshrouded in the same mystery to the Martians, as that which surrounds the building of the pyramids in Egypt. I was now made aware of another valuable use to which the canals were put, in fact a most important adjunct to the operation of an aerenoid. The checking of such terrific speed would be impossible, were it not for the water in these canals. We had covered several hundred miles without propulsion, and our speed had not decreased perceptibly, when, moving a lever at his side, Reon turned the aerenoid slightly downward. In an instant we were plunging along the surface of the water, sending high into the air great clouds of spray, which formed snow-white banks on either side of the wake, and made a most remarkable picture. I now realized why this high-speed aerenoid resembled a submarine boat in appearance. Gradually our speed was reduced until, moving at not more than a mile a minute, we gently left the surface of the water and proceeded down several branch canals. At last we slowly rose above the top of the canal banks. Higher and higher we ascended until we were about a thousand feet in the air, and then proceeded at a greatly reduced speed. A veritable fairyland lay beneath us. Stretching as far as the eye could reach lay a landscape of pink and green, dotted with white marble buildings of magnificent architecture. Narrow paths, shaded by trees, could be seen winding in and out over rustic bridges and beside sparkling brooks. But nowhere did there appear either cities or towns--not even a road was there to indicate a volume of traffic in any particular direction. No small aerenoids were to be seen floating about, and as the air in our car was now very close, I realized that in consequence of the light atmosphere of Mars, the sun's direct rays gave great heat. It was evidently the custom for Martians to remain as much as possible under cover in the daytime.