Presently the lines were broken here and there by such fields as I had seen in descending from Asnyca; some filled with crops of human food, some with artificial pastures, in which Unicorns or other creatures were feeding. I saw also more than one field wherein the carvee were weeding or gathering fruit, piling their burdens in either case as soon as into bags or baskets. Pointing out to Eveena the striking difference of colour between the cultivated fields and gardens and the woods or natural meadows on the mountain sides, I learned from her that this distinction is everywhere perceptible in Mars. Natural objects, plants or animals, rocks and soil, are for the most part of dimmer, fainter, or darker tints than on Earth; probably owing to the much less intense light of the Sun; partly, perhaps, to that absorption of the blue rays by the atmosphere, which diminishes, I suppose, even that light which actually reaches the planet. But uncultivated ground, except on the mountains above the ordinary range of crops or pastures, scarcely exists in the belt of Equatorial continents; the turf itself, like the herbage or fruit shrubs in the fields, is artificial, consisting of plants developed through long ages into forms utterly unlike the native original by the skill and ingenuity of man. Even the great fruit trees have undergone material change, not only in the size, flavour, and appearance of the fruits themselves, which have been the immediate object of care, but, probably through some natural correlation between, the different organs, in the form and colour of the foliage, the arrangement of the branches, and the growth of the trunk, all of which are much more regular, and, so to speak, more perfect, than is the case either here or on Earth with those left to the control of Nature and locality, or the effects of the natural competition, which is in its way perhaps as keen among plants and animals as among men. Martialists have the same delight in bright colours as Orientals, with far greater taste in selection and combination; and the favourite hues not only of their flowers, tame birds, fishes, and quadrupeds, but of plants in whose cultivation utility has been the primary object, contrast signally, as I have said, with the dull tints of the undomesticated flora and fauna, of which comparatively scanty remnants were visible here and there in this rich country.
Presently we came within sight of the river, over which was a single bridge, formed by what might be called a tube of metal built into strong walls on either bank. In fact, however, the sides were of open work, and only the roof and floor were solid. The river at this, its narrowest point, was perhaps a furlong in breadth, and it was not without instinctive uneasiness that I trusted to the security of a single piece of metal spanning, without even the strength afforded by the form of the arch, so great a space.
The first object we were to visit lay at some distance down the stream. As we approached the point, we passed a place where the river widened considerably. The main channel in the centre was kept clear and deep to afford an uninterrupted course for navigation; but on either side were rocks that broke the river into pools and shallows, such as here, no less than on Earth, form the favourite haunts or spawning places of the fish. In some of the lesser pools birds larger than the stork, bearing under the throat an expansible bag like that of the pelican, were seeking for prey. They were watched and directed by a master on the shore, and carried to a square tank, fixed on a wheeled frame not unlike that of the ordinary carriage, which accompanied him, each fish they took. I observed that the latter were carefully seized, with the least possible violence or injury, placed by a jerk head-downmost in the throat-bag, which, though when empty it was scarcely perceptible, would contain prey of very considerable size and weight, and as carefully disgorged into the tank. In one of the most extensive pools, too deep for these birds, a couple of men had spread a sort of net, not unlike those used on Earth, but formed of twisted metal threads with very narrow meshes, enclosing the whole pool, a space of perhaps some 400 square yards. In the centre of this an electric lamp was let down into the water, some feet below the surface. The fish crowded towards it, and a sudden shock of electricity transmitted through the meshes of the net, as well as from the wires of the lamp circuit, stunned for a few minutes all life within the enclosure. The fish then floated on the surface, the net was drawn together, and they were collected and sorted; some which, as I afterwards learned, were required for breeding, being carefully and separately preserved in a smaller tank, those fit for food cast into the larger one, those too small for the one purpose and not needed for the other being thrown back into the water. I noted, however, that many fish apparently valuable were among those thus rejected. I spoke to one of the fishermen, who, regarding me with great surprise and curiosity, at last answered briefly that a stringent law forbids the catching of spawning fish except for breeding purposes. Those, therefore, for which the season was close-time were invariably spared.
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