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Updated: May 18, 2025
Building a Channel Tunnel is as big a job as building the Gigantic any day, and Hare is as brainy as Tom Arthurs!" He became oratorical about the Channel Tunnel, and he told them stories of remarkable borings on both sides of the sea. "There's a big thick bed of grey chalk all the way from England to France," he said, "and the water simply can't get through it.
Borings into the alluvial deposits of the Nile have proved the existence of man in that valley more than thirty thousand years ago, as estimated by the known rate of deposit of the alluvium of the Nile.
But no sooner is the first partition passed than a second presents itself. This is pierced in its turn. In the same way will the third be pierced and others after that, if the insect can manage them, as long as its strength holds out. Too weak for these repeated borings, the males do not go far through my thick plugs.
It may be well to note the fact that the greater part of the so-called artesian wells, or borings which deliver water to a height above the surface, are not true artesian sources, in that they do not send up the water by the action of gravitation, but under the influence of gaseous pressure.
The government of Trinidad has leased the asphalt lake to an American company and the income amounts to nearly a quarter of a million dollars per year. Nobody knows how deep the asphalt bed is for borings have been made a hundred feet or more deep and there was no bottom. The heat is intense all around this lake.
There are gases in the earth which may be ignited, and there are combustible materials as we see in the volcanoes; but if we came across anything of the sort in our borings, we could turn a river or two down the shaft, and get the better of it in that fashion."
I am the general manager of the Guthrie Steel Company with head-quarters here in New York. We have been looking for mineral up in that section of the State, and struck yours. I might as well tell you that I made the borings myself." "Are you an expert?" asked Jack.
For hours on end he lay flat on his back, staring at the dim illuminations of the windows and listening to the faint out-of-door noises or the sharper borings of insects in the logs of the structure. His mind was not active. He lay in a semi-torpor, whose most vivid consciousness was that of mental discomfort and the interminability of time.
But they had scarcely been commenced when it was discovered that, at an interval between the two trial-shafts which had been sunk, about 200 yards from the south end of the tunnel, there existed an extensive quicksand under a bed of clay 40 feet thick, which the borings had escaped in the most singular manner.
The whole consisted of Nile deposits, alternate layers of loam and sand of the same composition throughout. From the greatest depth a fragment of pottery was obtained. Ninety-five of these borings were made in various places, but on no occasion was solid rock reached.
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