Diggers in the Earth
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In our eReader you can find the full English version of the book. Read Diggers in the Earth Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Diggers in the Earth
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The passageways were then lined with heavy logs standing oneither side, other logs laid across their tops, and all bolted firmlytogether. Nevertheless, they twisted and fell, and slowly butcertainly the whole mass of earth and rock, two hundred or more feetin thickness, was coming down upon the heads of the miners. The workon the Comstock mines had come to an end unless a man could be foundable to invent some system of support not laid down in the books. Theman was found. He took short, square ...timbers five or six feet long, put them together as if they were the sides and ends of square boxes, and piled them one above another, making hollow pillars. He fastenedthese firmly together and filled the space inside with waste rock, thus making strong, solid pillars that would support almost any weightthat could be put upon them.
There were two other dangers, water and heat. The vein was porous andwater was constantly trickling out of it. Then, too, there were "waterpockets, " or natural reservoirs in the rock, and any moment thestroke of a pick might let out a torrent and force the miners to runfor their lives.
What to read after Diggers in the Earth?
You can find similar books in the "Read Also" column, or choose other free books by Tappan Eva March to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
The passageways were then lined with heavy logs standing oneither side, other logs laid across their tops, and all bolted firmlytogether. Nevertheless, they twisted and fell, and slowly butcertainly the whole mass of earth and rock, two hundred or more feetin thickness, was coming down upon the heads of the miners. The workon the Comstock mines had come to an end unless a man could be foundable to invent some system of support not laid down in the books. Theman was found. He took short, square ...timbers five or six feet long, put them together as if they were the sides and ends of square boxes, and piled them one above another, making hollow pillars. He fastenedthese firmly together and filled the space inside with waste rock, thus making strong, solid pillars that would support almost any weightthat could be put upon them.
There were two other dangers, water and heat. The vein was porous andwater was constantly trickling out of it. Then, too, there were "waterpockets, " or natural reservoirs in the rock, and any moment thestroke of a pick might let out a torrent and force the miners to runfor their lives.
What to read after Diggers in the Earth?
You can find similar books in the "Read Also" column, or choose other free books by Tappan Eva March to read onlineMoreLess
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