Text from the Library of America edition: A Week on the Concord and Merrimack Rivers ; Walden, or, Life in the Woods ; The Maine Woods ; Cape Cod, by Henry David Thoreau, Edited by Robert F. Sayre, ISBN: 0940450275.Out of copyright text comes originally from the Literary Classics of the U.S reprint, 1985. Online text at Electronic Text Center, University of Virginia, http://etext.lib.virginia.edu/toc/modeng/public/ThoWald.htmlSee also http://eserver.org/thoreau/walden00.htmlhttp://www.gutenberg.net/etext95... free, public domain edition was published at Walden Pond by the Internet Bookmobile, July 8, 2004. To arrange a free Internet Bookmobile visit, see http://www.archive.org/texts/bookmobile.phpMade possible by the Internet Archive and Anywhere Books.