European commerce, shewing new and secure channels of trade with the continent of Europe : detailiing the produce, manufactures, and commerce, of Russia, Prussia, Sweden, Denmark, and Germany, as well as the trade of the Rivers Elbe, Weser, and Ems, with a general view of the trade, navigation, produce, and manufactures, of the United Kingdom of Great Britain and Ireland, and its unexplored and improvable resources and interior wealth : illustrated with a canal and river map of Europe /