- The NibelungenliedAuthor: Daniel Bussier ShumwayReleased on Project Gutenberg: December 1, 1997
- The Nibelungenlied: Translated into Rhymed English Verse in the Metre of the OriginalAuthor: G. H. (George Henry) NeedlerReleased on Project Gutenberg: January 1, 2005
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- The Night of the Long KnivesAuthor: Virgil Finlay, Fritz LeiberReleased on Project Gutenberg: April 9, 2008
- The Night-BornAuthor: Jack LondonReleased on Project Gutenberg: September 1, 1997
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- The Nine-TenthsAuthor: James OppenheimReleased on Project Gutenberg: February 1, 2004
- The ninth vibration and other storiesAuthor: L. Adams (Lily Adams) BeckReleased on Project Gutenberg: August 1, 1999
- The noble lordAuthor: Percival WildeReleased on Project Gutenberg: November 23, 2006
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- The Norsemen in the WestAuthor: R. M. (Robert Michael) BallantyneReleased on Project Gutenberg: June 7, 2007
- The Norsk Nightingale; Being the Lyrics of a "Lumberyack"Author: William Frederick KirkReleased on Project Gutenberg: September 1, 2005
- The North American Indian, Vol. 1Author: Edward S. CurtisReleased on Project Gutenberg: October 3, 2006
- The North Pole: Its Discovery in 1909 under the auspices of the Peary Arctic ClubAuthor: Robert E. (Robert Edwin) Peary, Gilbert Hovey Grosvenor, Theodore RooseveltReleased on Project Gutenberg: August 3, 2006
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- The Northern LightAuthor: E. Werner, Lowrey, D. M., Mrs. [Translator]Released on Project Gutenberg: June 20, 2005
- The Northmen, Columbus and Cabot, 985-1503Author: Olson, Julius E. [Editor], Edward Gaylord BourneReleased on Project Gutenberg: June 13, 2006
- The Norwegian account of Haco's expedition against Scotland, A.D. MCCLXIII.Author: Sturla Þórðarson, Johnstone, James, -Released on Project Gutenberg: May 2, 2006
- The Note-Books of Samuel ButlerAuthor: Samuel Butler, Henry Festing JonesReleased on Project Gutenberg: July 1, 2004
- The Notebooks of Leonardo Da Vinci — CompleteAuthor: da Vinci Leonardo, Jean Paul RichterReleased on Project Gutenberg: January 1, 2004
- The Notebooks of Leonardo Da Vinci — Volume 1Author: da Vinci Leonardo, Jean Paul RichterReleased on Project Gutenberg: January 1, 2004
- The Notebooks of Leonardo Da Vinci — Volume 2Author: da Vinci Leonardo, Jean Paul RichterReleased on Project Gutenberg: January 1, 2004
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- The Novel and the Common SchoolAuthor: Charles Dudley WarnerReleased on Project Gutenberg: December 5, 2004
- The Number "e"Author: UnknownReleased on Project Gutenberg: April 1, 1993
- The Number Concept: Its Origin and DevelopmentAuthor: Levi L. (Levi Leonard) ConantReleased on Project Gutenberg: August 5, 2005
- The number-system of algebra treated theoretically and historically (2nd edition)Author: Henry B. (Henry Burchard) FineReleased on Project Gutenberg: March 4, 2006
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- The Nursery, August 1873, Vol. XIV. No. 2Author: VariousReleased on Project Gutenberg: March 29, 2008
- The Nursery, December 1873, Vol. XIV. No. 6Author: VariousReleased on Project Gutenberg: March 29, 2008
- The Nursery, February 1873, Vol. XIII.: A Monthly Magazine for Youngest ReadersAuthor: VariousReleased on Project Gutenberg: January 31, 2008
- The Nursery, January 1873, Vol. XIII.: A Monthly Magazine for Youngest ReadersAuthor: VariousReleased on Project Gutenberg: January 31, 2008
- The Nursery, July 1873, Vol. XIV. No. 1Author: VariousReleased on Project Gutenberg: March 29, 2008
- The Nursery, June 1873, Vol. XIII.: A Monthly Magazine for Youngest ReadersAuthor: VariousReleased on Project Gutenberg: January 31, 2008
- The Nursery, March 1873, Vol. XIII.: A Monthly Magazine for Youngest ReadersAuthor: VariousReleased on Project Gutenberg: January 31, 2008
- The Nursery, May 1873, Vol. XIII.: A Monthly Magazine for Youngest ReadersAuthor: VariousReleased on Project Gutenberg: January 31, 2008
- The Nursery, No. 103, July, 1875. Vol. XVIII.: A Monthly Magazine for Youngest ReadersAuthor: VariousReleased on Project Gutenberg: November 15, 2006
- The Nursery, No. 106, October, 1875. Vol. XVIII.: A Monthly Magazine for Youngest ReadersAuthor: VariousReleased on Project Gutenberg: August 13, 2005
- The Nursery, No. 107, November, 1875, Vol. XVIII.: A Monthly Magazine for Youngest ReadersAuthor: VariousReleased on Project Gutenberg: August 13, 2005
- The Nursery, No. 109, January, 1876, Vol. XIX.: A Monthly Magazine for Youngest ReadersAuthor: VariousReleased on Project Gutenberg: April 12, 2007
- The Nursery, No. 165. September, 1880, Vol. 28: A Monthly Magazine For Youngest ReadersAuthor: VariousReleased on Project Gutenberg: December 28, 2004
- The Nursery, No. 169, January, 1881, Vol. XXIX: A Monthly Magazine for Youngest ReadersAuthor: VariousReleased on Project Gutenberg: January 17, 2006
- The Nursery, November 1873, Vol. XIV. No. 5Author: VariousReleased on Project Gutenberg: March 29, 2008
- The Nursery, Number 164: A Monthly Magazine for Youngest ReadersAuthor: VariousReleased on Project Gutenberg: May 28, 2005
- The Nursery, October 1873, Vol. XIV. No. 4Author: VariousReleased on Project Gutenberg: March 29, 2008
- The Nursery, September 1873, Vol. XIV. No. 3Author: VariousReleased on Project Gutenberg: March 29, 2008
- The Nursery, Volume 17, No. 100, April, 1875: A Monthly Magazine for Youngest ReadersAuthor: VariousReleased on Project Gutenberg: November 26, 2004
- The Nursery, Volume 17, No. 101, May, 1875: A Monthly Magazine for Youngest ReadersAuthor: VariousReleased on Project Gutenberg: December 13, 2004
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- The Nuttall encyclopædiaAuthor: Nuttall, P. Austin, Wood, James, Rev.Released on Project Gutenberg: May 1, 2004