- The Botanic Garden. Part 2, Containing the Loves of the Plants. A Poem.: With Philosophical Notes.Author: Erasmus DarwinReleased on Project Gutenberg: January 1, 2004
- The Botanical Magazine, Vol. 01: Or, Flower-Garden DisplayedAuthor: William CurtisReleased on Project Gutenberg: December 2, 2005
- The Botanical Magazine, Vol. 02: Or, Flower-Garden DisplayedAuthor: William CurtisReleased on Project Gutenberg: January 16, 2006
- The Botanical Magazine, Vol. 03: Or, Flower-Garden DisplayedAuthor: William CurtisReleased on Project Gutenberg: February 3, 2006
- The Botanical Magazine, Vol. 04: Or, Flower-Garden DisplayedAuthor: William CurtisReleased on Project Gutenberg: March 14, 2006
- The Botanical Magazine, Vol. 05: Or, Flower-Garden DisplayedAuthor: William CurtisReleased on Project Gutenberg: August 26, 2006
- The Botanical Magazine, Vol. 06: Or, Flower-Garden DisplayedAuthor: William CurtisReleased on Project Gutenberg: June 15, 2007
- The Botanical Magazine, Vol. 07: Or, Flower-Garden DisplayedAuthor: William CurtisReleased on Project Gutenberg: November 21, 2007
- The Botanical Magazine, Vol. 08: Or, Flower-Garden DisplayedAuthor: William CurtisReleased on Project Gutenberg: February 22, 2008
- The Botanist's Companion, Volume II: Or an Introduction to the Knowledge of Practical Botany, and the Uses of Plants. Either Growing Wild in Great Britain, or Cultivated for the Puroses of Agriculture, Medicine, Rural Oeconomy, or the ArtsAuthor: Salisbury, William, -Released on Project Gutenberg: May 1, 2004
- The Bow of Orange Ribbon: A Romance of New YorkAuthor: Amelia E. Barr, Hampe, Theo. [Illustrator]Released on Project Gutenberg: November 28, 2005
- The Box with Broken SealsAuthor: E. Phillips (Edward Phillips) OppenheimReleased on Project Gutenberg: February 1, 2006
- The Boy Allies at Jutland; Or, The Greatest Naval Battle of HistoryAuthor: Clair W. (Clair Wallace) HayesReleased on Project Gutenberg: November 1, 2003
- The Boy Allies at Liège; Or, Through Lines of SteelAuthor: Clair W. (Clair Wallace) HayesReleased on Project Gutenberg: June 1, 2004
- The Boy Allies at Verdun; Or, Saving France from the EnemyAuthor: Clair W. (Clair Wallace) HayesReleased on Project Gutenberg: July 25, 2004
- The Boy Allies in Great Peril; Or, With the Italian Army in the AlpsAuthor: Clair W. (Clair Wallace) HayesReleased on Project Gutenberg: June 1, 2004
- The Boy Allies in the Balkan Campaign; Or, the Struggle to Save a NationAuthor: Clair W. (Clair Wallace) HayesReleased on Project Gutenberg: July 2, 2004
- The Boy Allies in the Trenches; Or, Midst Shot and Shell Along the AisneAuthor: Clair W. (Clair Wallace) HayesReleased on Project Gutenberg: June 1, 2004
- The Boy Allies on the Firing Line; Or, Twelve Days Battle Along the MarneAuthor: Clair W. (Clair Wallace) HayesReleased on Project Gutenberg: July 9, 2004
- The Boy Allies Under the Sea; Or, The Vanishing SubmarinesAuthor: Clair W. (Clair Wallace) HayesReleased on Project Gutenberg: January 17, 2005
- The Boy Allies under Two FlagsAuthor: Clair W. (Clair Wallace) HayesReleased on Project Gutenberg: August 1, 2004
- The Boy Allies with Haig in Flanders; Or, the Fighting Canadians of Vimy RidgeAuthor: Clair W. (Clair Wallace) HayesReleased on Project Gutenberg: July 1, 2004
- The Boy Allies with the Victorious Fleets; Or, The Fall of the German NavyAuthor: Clair W. (Clair Wallace) HayesReleased on Project Gutenberg: January 7, 2005
- The Boy Allies with Uncle Sam's CruisersAuthor: Clair W. (Clair Wallace) HayesReleased on Project Gutenberg: July 1, 2004
- The Boy and the Sunday School: A Manual of Principle and Method for the Work of the Sunday School with Teen Age BoysAuthor: John L. Alexander, Marion LawranceReleased on Project Gutenberg: May 28, 2005
- The Boy Aviators in Africa; Or, an Aerial Ivory TrailAuthor: John Henry GoldfrapReleased on Project Gutenberg: November 1, 2004
- The Boy Aviators' Polar Dash; or, Facing Death in the AntarcticAuthor: John Henry GoldfrapReleased on Project Gutenberg: November 1, 2004
- The Boy Aviators' Treasure Quest; Or, The Golden GalleonAuthor: John Henry GoldfrapReleased on Project Gutenberg: July 1, 2004
- The Boy Captives: An Incident of the Indian War of 1695Author: John Greenleaf WhittierReleased on Project Gutenberg: April 1, 1997
- The Boy from the Ranch; Or, Roy Bradner's City ExperiencesAuthor: Webster, Frank V.Released on Project Gutenberg: June 10, 2007
- The Boy HuntersAuthor: Mayne ReidReleased on Project Gutenberg: April 27, 2007
- The Boy Inventors' Radio TelephoneAuthor: Bonner, Richard, Charles L. (Charles Lewis) WrennReleased on Project Gutenberg: October 18, 2004
- The Boy Knight: A Tale of the CrusadesAuthor: G. A. (George Alfred) HentyReleased on Project Gutenberg: September 2, 2004
- The Boy Land Boomer; Or, Dick Arbuckle's Adventures in OklahomaAuthor: Edward Stratemeyer, Fry, W. H. [Illustrator]Released on Project Gutenberg: February 18, 2007
- The Boy Life of Napoleon, Afterwards Emperor of the FrenchAuthor: Eugénie Foa, George, Vesper L. [Illustrator]Released on Project Gutenberg: September 7, 2004
- The Boy Mechanic, Volume 1: 700 Things for Boys to DoAuthor: H. H. (Henry Haven) WindsorReleased on Project Gutenberg: June 1, 2004
- The boy nihilistAuthor: Arnold, AllanReleased on Project Gutenberg: October 20, 2007
- The Boy PatriotAuthor: Edward Sylvester EllisReleased on Project Gutenberg: April 17, 2007
- The Boy Ranchers Among the Indians; Or, Trailing the YaquisAuthor: Baker, Willard F.Released on Project Gutenberg: November 27, 2006
- The Boy Ranchers on the Trail; Or, The Diamond X After Cattle RustlersAuthor: Baker, Willard F.Released on Project Gutenberg: September 1, 2004
- The Boy ScoutAuthor: Richard Harding DavisReleased on Project Gutenberg: October 8, 2006
- The Boy Scout AviatorsAuthor: Durston, GeorgeReleased on Project Gutenberg: May 1, 2004
- The Boy Scout Camera Club; Or, the Confession of a PhotographAuthor: G. Harvey (George Harvey) RalphsonReleased on Project Gutenberg: January 1, 2005
- The Boy Scout Treasure Hunters; Or, The Lost Treasure of Buffalo HollowAuthor: Charles Henry Lerrigo, Charles L. (Charles Lewis) WrennReleased on Project Gutenberg: September 17, 2007
- The Boy Scouts in Front of Warsaw; Or, In the Wake of WarAuthor: Durston, GeorgeReleased on Project Gutenberg: June 1, 2004
- The Boy Scouts In RussiaAuthor: Blaine, John, Furman, E. A. [Illustrator]Released on Project Gutenberg: August 18, 2005
- The Boy Scouts of Lenox; Or, The Hike Over Big Bear MountainAuthor: Webster, Frank V.Released on Project Gutenberg: June 15, 2007
- The Boy Scouts of the Eagle PatrolAuthor: John Henry GoldfrapReleased on Project Gutenberg: April 1, 2004
- The Boy Scouts of the Flying SquadronAuthor: Shaler, RobertReleased on Project Gutenberg: July 19, 2004
- The Boy Scouts of the Geological SurveyAuthor: Shaler, RobertReleased on Project Gutenberg: July 19, 2004
- The Boy Scouts on a SubmarineAuthor: Blaine, JohnReleased on Project Gutenberg: August 1, 2004
- The Boy Scouts on Picket DutyAuthor: Shaler, RobertReleased on Project Gutenberg: July 19, 2004
- The Boy Scouts on Sturgeon Island; or, Marooned Among the Game-fish PoachersAuthor: Carter, Herbert, activeReleased on Project Gutenberg: May 1, 2005
- The Boy Scouts on the TrailAuthor: Durston, GeorgeReleased on Project Gutenberg: January 10, 2007
- The Boy Scouts PatrolAuthor: Victor, RalphReleased on Project Gutenberg: May 1, 2004
- The Boy Scouts with the Motion Picture PlayersAuthor: Shaler, RobertReleased on Project Gutenberg: July 19, 2004
- The Boy Scouts' First Camp Fire; or, Scouting with the Silver Fox PatrolAuthor: Carter, Herbert, activeReleased on Project Gutenberg: January 24, 2007
- The Boy SlavesAuthor: Mayne ReidReleased on Project Gutenberg: February 3, 2008
- The Boy TarAuthor: Mayne Reid, Read, Edward [Illustrator]Released on Project Gutenberg: June 1, 2008
- The Boy TrapperAuthor: Harry CastlemonReleased on Project Gutenberg: March 29, 2006