"Canada has improved the St. Lawrence by canals round the rapids of the St. Lawrence, and by the Welland Canal, connecting lakes Erie and Ontario, twenty-eight miles in length with a fall of two hundred and sixty feet, capable of passing vessels of four hundred tons. The St. Lawrence, from the east end of Lake Ontario, has a fall of two hundred and twenty feet, overcome by seven short canals of an aggregate length of forty-seven miles, capable of passing vessels of six hundred and fifty tons. The Richelieu River is connected with Lake Champlain by a canal of twelve miles from Chambly. A canal of one mile in length, at the outlet of Lake Superior, connects that lake with Lake Huron, and has two locks, which will pass vessels of two thousand tons. New York has built a canal from Buffalo, on Lake Erie, and from Oswego, on Lake Ontario, to Albany, on the Hudson River, of three hundred and sixty and of two hundred and nine miles, capable of passing boats of two hundred and ten tons; and she has also constructed a canal from the Hudson River into Lake Champlain of sixty-five miles, which can pass boats of eighty tons. "Such is the nature of the navigation between tide-water on the Hudson and St. Lawrence and the upper lakes. The magnitude of the commerce of the Northwest has compelled the enlargement of the Erie and Oswego canals from boats of seventy-eight to two hundred and ten tons, while the St. Lawrence and Welland canals have also been enlarged since their first construction. A further enlargement of the Erie and Champlain canals is now strongly urged in consequence of the want of the necessary facilities of transport for the ever increasing western trade. The object of the Caughnawaga Ship-canal is to connect Lake Champlain with the St. Lawrence by the least possible distance, and with the smallest amount of lockage. When built, it will enable the vessel or propeller to sail from the head of lakes Superior or Michigan without breaking bulk, and will enable such vessels to land and receive cargo at Burlington and Whitehall, from whence western freights can be carried to and from Boston, and throughout New England, by railway cheaper than by any other route.