Communication from the secretary of the Treasury : transmitting, in compliance with a resolution of the Senate of March 8, 1851, the report of Israel D. Andrews, consul of the United States for Canada and New Brunswick, on the trade and commerce of the British North American colonies, and upon the trade of the Great Lakes and rivers : also, notices of the internal improvements in each state, of the Gulf of Mexico and straits of Florida, and a paper on the cotton crop of the United States.