No other canal in the world can rival the one at Sault Ste. Marie, Mich., which connects Lake Superior with Lake Huron, in the enormous volume of its shipping. There are really two canals--one owned by the Canadian Government, and one by the United States Government. The canal belonging to the United States was begun in 1853 by the State of Michigan, and opened in 1855. It had a length of about a mile and was provided with twin locks 350 feet long, allowing the passage of vessels drawing 12 feet of water. The United States Government, by consent of the State of Michigan, began in 1870 to enlarge the canal, and, by 1881, had increased its length to 1.6 miles, its width to an average of 160 feet and its depth to 16 feet. A lock 515 feet long, 80 feet wide, and 17 feet deep was located south of the locks which were built by the State. In 1882 the United States Government took over the entire control of the canal. Five years later the locks that had been built by the State were torn down, and a new one 800 feet long, 100 feet wide, and 22 feet deep was put into commission in 1896. The Canadian Canal, 1-1/8 miles long, 150 feet wide, and 22 feet deep, was built on the north side of the river during the years 1888 to 1895. Its locks are 900 feet long, 60 feet wide, and 22 feet deep. The traffic through the Sault Ste. Marie Canals averages around 60,000,000 tons a year. This is as much as the Panama Canal can expect to get 40 years after its opening. The tonnage of the American Soo Canal passed the million mark in 1873, reached the 20,000,000 mark in 1899, and amounted to 46,000,000 net tons in 1909. It now ranges around 50,000,000 tons. It will be seen from this that the American Canal, built on the south side of St. Mary's River, gets about ten times as much traffic as the Canadian Canal, built on the north side of the river. This gives the American Soo Canal more than twice as much traffic as the Suez Canal, and about four times as much as the Panama Canal expects to begin with.