CHAPTER XLIII. THE MISSISSIPPI AND ITS PECULIARITIES. Length of the Great River, and the Area it Drains .-- How Itasca Lake obtained its Name .-- The Bends of the Mississippi .-- Curious Effect upon Titles to Real Estate .-- A Story of Napoleon .-- A Steamboat Thirty-five Years under Water .-- The Current and its Variations .-- Navigating Cotton and Corn Fields .-- Reminiscences of the Islands..