- Caesar and CleopatraAuthor: Bernard ShawReleased on Project Gutenberg: July 1, 2002
- Caesar DiesAuthor: Talbot MundyReleased on Project Gutenberg: December 1, 2003
- Caesar: A SketchAuthor: James Anthony FroudeReleased on Project Gutenberg: July 1, 2005
- Calderon the Courtier, a TaleAuthor: Lytton, Edward Bulwer Lytton, BaronReleased on Project Gutenberg: November 27, 2004
- Caleb in the CountryAuthor: Jacob AbbottReleased on Project Gutenberg: December 24, 2007
- Caleb Williams; Or, Things as They AreAuthor: William GodwinReleased on Project Gutenberg: February 1, 2004
- California and the CaliforniansAuthor: David Starr JordanReleased on Project Gutenberg: December 1, 2003
- California Romantic and Resourceful: A plea for the Collection, Preservation and Diffusion of Information Relating to Pacific Coast HistoryAuthor: John Francis DavisReleased on Project Gutenberg: November 1, 2003
- California Sketches, New SeriesAuthor: O. P. (Oscar Penn) FitzgeraldReleased on Project Gutenberg: June 1, 2004
- California, 1849-1913; Or, The Rambling Sketches and Experiences of Sixty-four Years' Residence in that StateAuthor: L. H. (Lell Hawley) WoolleyReleased on Project Gutenberg: November 1, 2003
- Calumet "K"Author: Samuel Merwin, Henry Kitchell WebsterReleased on Project Gutenberg: April 11, 2006
- Calvary AlleyAuthor: Alice Caldwell Hegan RiceReleased on Project Gutenberg: January 1, 2006
- Calvert of StrathoreAuthor: Abbe Carter GoodloeReleased on Project Gutenberg: March 1, 2004
- CambridgeAuthor: Gordon HomeReleased on Project Gutenberg: July 8, 2004
- Cambridge Essays on EducationAuthor: Arthur Christopher BensonReleased on Project Gutenberg: September 28, 2004
- Cambridge Neighbors (from Literary Friends and Acquaintance)Author: William Dean HowellsReleased on Project Gutenberg: October 22, 2004
- Cambridge PiecesAuthor: Samuel ButlerReleased on Project Gutenberg: June 1, 2002
- Cambridge SketchesAuthor: Frank Preston StearnsReleased on Project Gutenberg: January 1, 2005
- Cameos from English History, from Rollo to Edward IIAuthor: Charlotte M. (Charlotte Mary) YongeReleased on Project Gutenberg: December 1, 2005
- Camille (La Dame aux Camilias)Author: Alexandre DumasReleased on Project Gutenberg: January 1, 1999
- Camp and Trail: A Story of the Maine WoodsAuthor: Isabel HornibrookReleased on Project Gutenberg: November 4, 2004
- Camp Life in the Woods and the Tricks of Trapping and Trap MakingAuthor: W. Hamilton (William Hamilton) GibsonReleased on Project Gutenberg: November 18, 2005
- Camp-Fire and Cotton-Field: Southern Adventure in Time of War.: Life with the Union Armies, and Residence on a Louisiana PlantationAuthor: Thomas Wallace KnoxReleased on Project Gutenberg: April 1, 2004
- Camp-fire and WigwamAuthor: Edward Sylvester EllisReleased on Project Gutenberg: July 4, 2008
- Campaign of the Indus: In a Series of Letters from an Officer of the Bombay DivisionAuthor: Holdsworth, T. W. E., Holdsworth, A. H. (Arthur Howe)Released on Project Gutenberg: July 9, 2004
- Campaign Pictures of the War in South Africa (1899-1900): Letters from the FrontAuthor: A. G. (Alfred Greenwood) HalesReleased on Project Gutenberg: June 25, 2005
- Campaigns of a Non-Combatant, and His Romaunt Abroad During the WarAuthor: George Alfred TownsendReleased on Project Gutenberg: November 5, 2007
- Campfire Girls at Twin Lakes; Or, The Quest of a Summer VacationAuthor: Francis, Stella M.Released on Project Gutenberg: March 16, 2007
- Campfire Girls in the Allegheny Mountains; or, A Christmas Success against OddsAuthor: Francis, Stella M.Released on Project Gutenberg: February 21, 2005
- Camping For BoysAuthor: H. W. (Henry William) GibsonReleased on Project Gutenberg: January 22, 2005
- Camps and Trails in China: A Narrative of Exploration, Adventure, and Sport in Little-Known ChinaAuthor: Roy Chapman Andrews, Yvette Borup AndrewsReleased on Project Gutenberg: May 1, 2004
- Camps, Quarters, and Casual PlacesAuthor: Archibald ForbesReleased on Project Gutenberg: December 1, 2005
- Can Such Things Be?Author: Ambrose BierceReleased on Project Gutenberg: August 1, 2003
- Can You Forgive Her?Author: Anthony TrollopeReleased on Project Gutenberg: November 16, 2006
- CanadaAuthor: John George Bourinot, William H. IngramReleased on Project Gutenberg: September 10, 2007
- Canada and Other PoemsAuthor: Young, T. F. (Thomas Frederick), -Released on Project Gutenberg: November 1, 2004
- Canada and the Canadians, Vol. 1Author: Bonnycastle, Richard Henry, SirReleased on Project Gutenberg: December 4, 2006
- Canada and the Canadians, Vol. 2Author: Bonnycastle, Richard Henry, SirReleased on Project Gutenberg: April 30, 2007
- Canada and the StatesAuthor: Watkin, E. W. (Edward William), SirReleased on Project Gutenberg: November 1, 2004
- Canada for GentlemenAuthor: Cockburn, James SetonReleased on Project Gutenberg: October 1, 2004
- Canada under British Rule 1760-1900Author: John George BourinotReleased on Project Gutenberg: June 1, 2004
- Canada: the Empire of the North: Being the Romantic Story of the New Dominion's Growth from Colony to KingdomAuthor: Agnes C. LautReleased on Project Gutenberg: December 14, 2006
- Canadian Crusoes: A Tale of the Rice Lake PlainsAuthor: Catharine Parr Strickland TraillReleased on Project Gutenberg: June 1, 2005
- Canadian Notabilities, Volume 1Author: John Charles DentReleased on Project Gutenberg: February 1, 2006
- Canadian Postal GuideAuthor: Canada. Post Office Department, John DewéReleased on Project Gutenberg: December 13, 2007
- Canadian Wild Flowers: Selections from the Writings of Miss Helen M. JohnsonAuthor: Helen M. (Helen Mar) JohnsonReleased on Project Gutenberg: November 1, 2004
- CandidaAuthor: Bernard ShawReleased on Project Gutenberg: May 1, 2003
- CandideAuthor: VoltaireReleased on Project Gutenberg: November 27, 2006
- Candle and CribAuthor: K. F. (Katherine Frances) Purdon, Glenavy, Beatrice Moss Campbell, BaronessReleased on Project Gutenberg: January 15, 2008
- Canoe Boys and Campfires; Or, Adventures on Winding WatersAuthor: William Murray GraydonReleased on Project Gutenberg: June 21, 2007
- Canoe Mates in Canada; Or, Three Boys Afloat on the SaskatchewanAuthor: St. George RathborneReleased on Project Gutenberg: October 7, 2006
- CanterburyAuthor: Gordon HomeReleased on Project Gutenberg: October 29, 2004
- Canterbury PiecesAuthor: Samuel ButlerReleased on Project Gutenberg: June 1, 2002
- Canyons of the ColoradoAuthor: John Wesley PowellReleased on Project Gutenberg: May 1, 2005
- Cap and Gown: A Treasury of College VerseAuthor: Frederic Lawrence KnowlesReleased on Project Gutenberg: January 1, 2004
- Cap'n Abe, Storekeeper: A Story of Cape CodAuthor: James A. CooperReleased on Project Gutenberg: November 8, 2004
- Cap'n Dan's DaughterAuthor: Joseph Crosby LincolnReleased on Project Gutenberg: June 6, 2006
- Cap'n EriAuthor: Joseph Crosby LincolnReleased on Project Gutenberg: May 30, 2006
- Cap'n Warren's WardsAuthor: Joseph Crosby LincolnReleased on Project Gutenberg: June 3, 2006
- Cape Cod and All the Pilgrim Land, June 1922, Volume 6, Number 4: A Monthly Magazine Devoted to the Interests of Southeastern MassachusettsAuthor: Various, Lemuel C. HallReleased on Project Gutenberg: February 8, 2005