Channing, Edward, 1856-1931, Moore, Eva G · New York, The Macmillan Company · leaf 12
Lines of Canals Lines of Railways 7" 75° 7,3° Lake Erie % 500 Sea Level ERIE CANAL 2600 feet 2000 1500 1000 River Obio^ 500 Sea Level 1 … CHESAPEAKE AND OHIO CANAL ly. 9 Scale of Miles for the Canal Sections WmB.Eng.Co.,N.T. Transportation in 1838 (From Stevenson's Civil Engineering of North America. The profiles are from Trotter's Observations, 1839) viii
United States -- History
Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.
