Hydraulic engineering; a practical treatise on the principles of water pressure and flow and their application to the development of water power, including the calculation, design and construction of water wheels, turbines, and other details of hydraulic power plants (1909)
American School (Chicago, Ill.), Black, Adolph, Turneaure, Frederick Eugene, 1866- · Chicago American School of Correspondence · leaf 325
^ o … WATE1M( )\VK1{ DEVELOPMENT in(f 270 feet to the level of the river below the Falls. While this.shaft was being excavated, a tunnel 12 feet wide and 24 feethigli,with a fall of 2 feet in its entire length, was drifted in from the face cfthe ledge below the Falls, to an intersection with the bottom…
