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Updated: June 26, 2025
Certainly their lives were much more grey and dreary now that the grey clay had ceased to spatter its mud and silt its dust over the premises. They did not quite realize how they missed the shrieking, shouting lasses, whom they had known all their lives and disliked so much. Matilda and Emmie were already old maids.
Nearly one three-hundredth part of the Colorado River water is silt, while in the case of the Mississippi the silt forms only one part in twenty-nine hundred. Now we are prepared to understand the origin of the vast lowlands about the head of the Gulf of California.
After lunch Tom flew to Fearing Island with Bud, eager to tackle their interrupted job of rooting the space plants into the undersea silt beds. Zimby Cox, a sandy-haired, freckle-faced jetmariner, volunteered to pilot a motor launch for them. They sped across the water, then dropped anchor at the farm site.
A peculiar gurgling sound had come from the ends of the hose, and the flow depreciated greatly; instead of the steady gush of water, a slimy silt was coming out now, spraying and splattering about on the sides of the drainage ditch. Wildly Harry waved a monstrous paw. "Shut 'em off!" he yelled to Fairchild in the dimness of the tunnel. "It's sucking the muck out of the sump!" "Out of the what?"
From the silt borne down on the flood-tide you can guess the fertile plains watered and far above the fertile plains, regions of eternal snow and glacial torrent warring turbulently through the adamantine rocks.
Visions of past scenes whipped in and out his mind, and he saw an ocean careening and frothing under a golden moon; a tide sweeping down, curdled with sand, a grim stream of silt, rushing on with the sullen sweep of doom and the wildfire of the prairie, leaping, cavorting, reaching out, turning and shooting, irresistibly borne under the lash of the wind.
Cf. Letters of Hammurabi, Vol. III, pp. xxxvi ff.; it was the duty of every village or town upon the banks of the main canals in Babylonia to keep its own section clear of silt, and of course it was also responsible for its own smaller irrigation-channels.
The material of the dump is for the most part unsorted, though the water of the melting ice may find opportunity to leave patches of stratified sands and gravels in the midst of the unstratified mass of drift, and the finer material is in places washed away. The stream is gray with silt and loaded with sand and gravel washed from the ground moraine.
Five of them lay buried in silt under the streets of Glasgow, one in a vertical position with the prow uppermost, as if it had sunk in a storm.... Almost every one of these ancient boats was formed out of a single oak-stem, hollowed out by blunt tools, probably stone axes, aided by the action of fire; a few were cut beautifully smooth, evidently with metallic tools.
They prevent the soil from washing, and so protect the storage reservoirs from filling up with silt. Forest conservation is therefore an essential condition of water conservation. The forests alone cannot, however, fully regulate and conserve the waters of the arid region. Great storage works are necessary to equalize the flow of streams and to save the flood waters.
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