Dodge, Mary Mapes, 1830-1905 · [New York : Scribner & Co.] · leaf 354
unger doesnot have a piston-head on its lower end, but ismerely a straight piece of steel tubing down tothe very bottom, where it is closed with a cap,and has two or three guides on it to keep it cen-tered in the cylinder. When the water is forcedin, it exerts a pressure in all directions on… … building and show you the whole thing in a min-ute, as soon as you have seen how we sink theshafts. They were hauling up one of the boring toolsjust then. It was on the end of a cable attachedto a jumping machine.Slowly the cable was woundup, and the length of time ittook to raise the tool gave…
Children's literature
Internet Archive · UNC Libraries · Public Domain Mark 1.0. Free to use for anything.
![An illustration from St. Nicholas [serial], 1873, leaf 354](https://img.insideoutlibrary.com/img/1024/ia-stnicholasserial402dodg-354-451.webp)
