provides ample means for no matter what the draft of the vessel may be, an effective where carried boring to a depth of 2,000 feet; and he exhibi- holding either large sheets or the smaller bound books used area is always presented. ted to the Geological Section some cylinders of rock that his by… … creased by fatigue of the eyes; and it is influenced by reflec- surface soil, the auger is 9 inches in diameter, but a 3 inch auger soon replaces the first, and in deep borings is itself re- tion. The device is composed of three parts: the tripod or legs, placed by one of 2 inches, or of only 1…
Patents · Vapor · Engine · Iron · Coupling · Consists · Horse power · Water · Steam engines · Hot air · Steam engine · Life boat · Vapor boiler · Vapor engine · Exhaust steam · Scientific American · Binary vapor
Internet Archive · Public domain (published before 1931). Free to use for anything.
