- O ArrependimentoAuthor: Camilo Castelo BrancoLanguage: Portuguese
- O cancioneiro portuguez da VaticanaAuthor: Teófilo BragaLanguage: Portuguese
- O congresso de Roma: (Conferência realisada pelo delegado portuguez do congresso do livre-pensamento)Author: S. de Magalhães (Sebastião de Magalhães) LimaLanguage: Portuguese
- O credito agricola em PortugalAuthor: Jaime de Magalhães LimaLanguage: Portuguese
- O desastre de Lisboa em 1755: poesiaAuthor: Augusto de Oliveira Cardoso FonsecaLanguage: Portuguese
- O Descobrimento do Brazil: Prioridade dos Portugueses no Descobrimento da AmericaAuthor: Manuel Ferreira Garcia RedondoLanguage: Portuguese
- O doido e a morteAuthor: Teixeira de PascoaisLanguage: Portuguese
- O EngeitadoAuthor: Alberto Leal Barradas Monteiro BragaLanguage: Portuguese
- O Ensino da Historia da Arte nos Lyceus e as excursões escolaresAuthor: Joaquim de VasconcellosLanguage: Portuguese
- O FederalismoAuthor: S. de Magalhães (Sebastião de Magalhães) LimaLanguage: Portuguese
- O General Carlos Ribeiro: Recordações da MocidadeAuthor: Camilo Castelo BrancoLanguage: Portuguese
- O Infante D. Henrique e a arte de navegar dos portuguezesAuthor: Vicente de Almeida de EçaLanguage: Portuguese
- O Jardim da PierretteAuthor: José de Almada NegreirosLanguage: Portuguese
- O Livro de Cesario VerdeAuthor: Cesário Verde, Antonio da Silva PintoLanguage: Portuguese
- O Livro de Elysa: FragmentosAuthor: João de LemosLanguage: Portuguese
- O MandarimAuthor: Eça de QueirósLanguage: Portuguese
- O May I Join the Choir Invisible! and Other Favorite PoemsAuthor: George Eliot, Elizabeth Barrett Browning, Robert Browning, Percy Bysshe ShelleyLanguage: English
- O Melro: (Fragmento)Author: Abílio Manuel Guerra JunqueiroLanguage: Portuguese
- O Mysterio da Estrada de Cintra. Cartas ao Diário de NoticiasAuthor: Eça de Queirós, Ramalho OrtigãoLanguage: Portuguese
- O Olho de VidroAuthor: Camilo Castelo BrancoLanguage: Portuguese
- O passeio dos bardos ao BaldeadorAuthor: Floriano Alves da CostaLanguage: Portuguese
- O Perfect Love: Wedding SongAuthor: H. T. (Harry Thacker) Burleigh, Dorothy F. BlomfieldLanguage: English
- O Pioneers!Author: Willa CatherLanguage: English
- O poeta Chiado: (Novas investigações sobre a sua vida e escriptos)Author: Alberto PimentelLanguage: Portuguese
- O RegicidaAuthor: Camilo Castelo BrancoLanguage: Portuguese
- O trophéoAuthor: Santos, C. Afonso dosLanguage: Portuguese
- O Vegetarismo e a Moralidade das raçasAuthor: Jaime de Magalhães LimaLanguage: Portuguese
- O vinho do Porto: processo de uma bestialidade ingleza: exposição a Thomaz RibeiroAuthor: Camilo Castelo BrancoLanguage: Portuguese
- O'Flaherty V.C.: A Recruiting PamphletAuthor: Bernard ShawLanguage: English
- O+FAuthor: Wetterau, John MoncureLanguage: English
- O. Henry Memorial Award Prize Stories of 1919Author: Society of Arts and Sciences (U.S.) [Editor], Blanche Colton WilliamsLanguage: English
- O. Henry Memorial Award Prize Stories of 1920Author: Society of Arts and Sciences (U.S.) [Editor], Blanche Colton WilliamsLanguage: English
- O. Henry Memorial Award Prize Stories of 1921Author: Society of Arts and Sciences (U.S.) [Editor], Blanche Colton Williams, Elizabeth (Elizabeth Alexander Heermann) Alexander, Maryland Allen, Thomas BeerLanguage: English
- O. T., A Danish RomanceAuthor: H. C. (Hans Christian) AndersenLanguage: English
- Oak OpeningsAuthor: James Fenimore CooperLanguage: English
- Obed Hussey, Who, of All Inventors, Made Bread CheapAuthor: Follett L. (Follett Lamberton) GreenoLanguage: English
- Oberheim (Voices): A Chronicle of WarAuthor: Leadem, ChristopherLanguage: English
- OberonAuthor: Christoph Martin WielandLanguage: German
- Obiter DictaAuthor: Augustine BirrellLanguage: English
- Obiter Dicta: Second SeriesAuthor: Augustine BirrellLanguage: English
- Object Lessons on the Human Body: A Transcript of Lessons Given in the Primary Department of School No. 49, New York CityAuthor: Sarah F. (Sarah Frances) Buckelew, Margaret W. (Margaret Wiseham) LewisLanguage: English
- Obras poéticas de Nicoláo Tolentino de Almeida, Tom. IIAuthor: Nicolau TolentinoLanguage: Portuguese
- Observations and Reflections Made in the Course of a Journey through France, Italy, and Germany, Vol. 1 (of 2)Author: Hester Lynch PiozziLanguage: English
- Observations By Mr. DooleyAuthor: Finley Peter DunneLanguage: English
- Observations Géologiques sur les Îles Volcaniques Explorées par l'Expédition du "Beagle": Et Notes sur la Géologie de l'Australie et du Cap de Bonne-EspéranceAuthor: Charles Darwin, Alphonse-François RenardLanguage: French
- Observations of a Retired VeteranAuthor: Henry C. TinsleyLanguage: English
- Observations of an Orderly: Some Glimpses of Life and Work in an English War HospitalAuthor: Ward MuirLanguage: English
- Observations on the Causes, Symptoms, and Nature of Scrofula or King's Evil, Scurvy, and Cancer: With Cases Illustrative of a Peculiar Mode of TreatmentAuthor: Kent, JohnLanguage: English
- Observations on the Effects of the Corn Laws, and of a Rise or Fall in the Price of Corn on the Agriculture and General Wealth of the CountryAuthor: T. R. (Thomas Robert) MalthusLanguage: English
- Observations on the Mussulmauns of India: Descriptive of Their Manners, Customs, Habits and Religious Opinions Made During a Twelve Years' Residence in Their Immediate SocietyAuthor: Meer Hasan Ali, Mrs., William CrookeLanguage: English
- Observations upon the Prophecies of Daniel, and the Apocalypse of St. JohnAuthor: Isaac NewtonLanguage: English
- Observations Upon the Windward Coast of Africa: The religion, character, customs, &c. of the natives; with a system upon which they may be civilized, and a knowledge attained of the interior of this extraordinary quarter of the globe; and upon the natural and commercial resources of the country; madAuthor: Corry, JosephLanguage: English
- Occasional Papers: Selected from the Guardian, the Times, and the Saturday Review, 1846-1890, Vol. 2Author: R. W. (Richard William) ChurchLanguage: English
- Occasional Poems: Part 3 from Volume IV of The Works of John Greenleaf WhittierAuthor: John Greenleaf WhittierLanguage: English
- Occasional Thoughts in Reference to a Vertuous or Christian lifeAuthor: Masham, Damaris, LadyLanguage: English
- Occult Chemistry: Clairvoyant Observations on the Chemical ElementsAuthor: Annie Besant, C. W. (Charles Webster) Leadbeater, A. P. (Alfred Percy) SinnettLanguage: English
- Ocean Steam Navigation and the Ocean PostAuthor: Rainey, ThomasLanguage: English
- Octavia: Tragedia em 5 ActosAuthor: Vittorio AlfieriLanguage: Portuguese
- October VagabondsAuthor: Richard Le GallienneLanguage: English
- OddAuthor: Amy Le FeuvreLanguage: English
- Odd Charges: Odd Craft, Part 13.Author: W. W. (William Wymark) Jacobs, Will OwenLanguage: English
- Odd craft [complete]Author: W. W. (William Wymark) Jacobs, Will OwenLanguage: English
- Odd Man Out: Sailor's Knots, Part 6.Author: W. W. (William Wymark) Jacobs, Will OwenLanguage: English
- Oddsfish!Author: Robert Hugh BensonLanguage: English
- OdenAuthor: Gotthold Ephraim LessingLanguage: German
- Odysseus, the Hero of Ithaca: Adapted from the Third Book of the Primary Schools of Athens, GreeceAuthor: Homer, Mary E. (Mary Elizabeth) Burt, Zénaïde A. (Zénaïde Alexeïevna) RagozinLanguage: English
- Oeuvres de André Lemoyne: Une Idylle normande.—Le Moulin des Prés.—Alise d'Évran.Author: André LemoyneLanguage: French
- Oeuvres de ChamplainAuthor: Samuel de Champlain, C.-H. (Charles-Honoré) LaverdièreLanguage: French
- Oeuvres illustrées de George Sand: Les visions de la nuit dans les campagnes - La vallée noire - Une visite aux catacombesAuthor: George SandLanguage: French
- Oeuvres poétiques Tome 1Author: Christine, de PisanLanguage: French
- Oeuvres poétiques Tome 2Author: Christine, de PisanLanguage: French
- Of Captain MissionAuthor: Defoe, DanielLanguage: English
- Of Human BondageAuthor: W. Somerset (William Somerset) MaughamLanguage: English
- Of the Orthographie and Congruitie of the Britan Tongue: A Treates, noe shorter than necessarie, for the SchoolesAuthor: Hume, Alexander, schoolmaster, Henry B. (Henry Benjamin) WheatleyLanguage: English
- Off on a Comet! a Journey through Planetary SpaceAuthor: Jules VerneLanguage: English
- Off to the Wilds: Being the Adventures of Two BrothersAuthor: George Manville Fenn, Henri Théophile Hildibrand, Edouard RiouLanguage: English
- Off-Hand Sketches, a Little Dashed with HumorAuthor: T. S. (Timothy Shay) ArthurLanguage: English
- Officer and Man: 1901Author: Louis BeckeLanguage: English
- Official Report of the Exploration of the Queen Charlotte Islands for the Government of British ColumbiaAuthor: Newton H. ChittendenLanguage: English
- Official Report of the Niger Valley Exploring PartyAuthor: Martin Robison DelanyLanguage: English
- Official views of the World's Columbian ExpositionAuthor: C. D. (Charles Dudley) Arnold, Higinbotham, H. D.Language: English
- Oh Little Town of BethlehemAuthor: Lewis Redner, Davis, Rick [Arranger]Language: English
- Oh! Susannah!: A Farcical Comedy in Three ActsAuthor: Mark AmbientLanguage: English
- Oh, Money! Money! A NovelAuthor: Eleanor H. (Eleanor Hodgman) PorterLanguage: English
- Oh, You Tex!Author: William MacLeod RaineLanguage: English
- Ohio Arbor Day 1913: Arbor and Bird Day Manual: Issued for the Benefit of the Schools of our StateAuthor: Clifton, Grace R. [Compiler]Language: English
- Ohio Biological Survey, Bull. 10, Vol. 11, No. 6: The Ascomycetes of Ohio IV and VAuthor: Bruce Fink, Leafy Jane Corrington HilkerLanguage: English
- Ohne den Vater: Erzählung aus dem KriegeAuthor: Agnes SapperLanguage: German
- Ojamylläri ja hänen miniänsäAuthor: Lydia Koidula, Forsman, Betty [Translator]Language: Finnish
- OjennusnuoraAuthor: Epictetus, 55-, K. (Kaarle Kustaa) JaakkolaLanguage: Finnish
- Okewood of the Secret ServiceAuthor: Valentine WilliamsLanguage: English
- Oklahoma and Other PoemsAuthor: Freeman Edwin MillerLanguage: English
- Olaf the Glorious: A Story of the Viking AgeAuthor: Robert LeightonLanguage: English
- Old and New MastersAuthor: Robert LyndLanguage: English
- Old BalladsAuthor: VariousLanguage: English
- Old CalabriaAuthor: Norman DouglasLanguage: English
- Old Caravan DaysAuthor: Mary Hartwell CatherwoodLanguage: English
- Old ChristmasAuthor: Washington IrvingLanguage: English
- Old Christmas: from the Sketch Book of Washington IrvingAuthor: Washington Irving, Randolph CaldecottLanguage: English
- Old Cookery Books and Ancient CuisineAuthor: William Carew HazlittLanguage: English
- Old Creole Days: A Story of Creole LifeAuthor: George Washington CableLanguage: English
- Old DanielAuthor: Hodson, ThomasLanguage: English
- Old EbenezerAuthor: Opie Percival ReadLanguage: English
- Old English librariesAuthor: Ernest Albert Savage, James HuttLanguage: English
- Old English Sports, Pastimes and CustomsAuthor: P. H. (Peter Hampson) DitchfieldLanguage: English
- Old Fires and Profitable Ghosts: A Book of StoriesAuthor: Arthur Quiller-CouchLanguage: English
- Old Fogy: His Musical Opinions and GrotesquesAuthor: James HunekerLanguage: English
- Old Fort Snelling, 1819-1858Author: Marcus Lee HansenLanguage: English
- Old French Romances, Done into EnglishAuthor: William Morris, Joseph JacobsLanguage: English
- Old Friends: Essays in Epistolary ParodyAuthor: Andrew LangLanguage: English
- Old Fritz and the New EraAuthor: L. (Luise) Mühlbach, Langley, Peter [Translator]Language: English
- Old Gold: The Cruise of the "Jason" BrigAuthor: George Manville Fenn, Stanley L. WoodLanguage: English
- Old Gorgon Graham: More Letters from a Self-Made Merchant to His SonAuthor: George Horace LorimerLanguage: English
- Old Granny FoxAuthor: Thornton W. (Thornton Waldo) BurgessLanguage: English
- Old Greek Folk Stories Told AnewAuthor: Josephine Preston PeabodyLanguage: English
- Old Greek StoriesAuthor: James BaldwinLanguage: English
- Old Indian DaysAuthor: Charles A. EastmanLanguage: English
- Old Indian LegendsAuthor: Zitkala-SaLanguage: English
- Old Jabe's Marital Experiments: 1908Author: Thomas Nelson PageLanguage: English
- Old JackAuthor: William Henry Giles KingstonLanguage: English
- Old John Brown, the man whose soul is marching onAuthor: Hawkins, WalterLanguage: English
- Old JunkAuthor: H. M. (Henry Major) Tomlinson, S. K. (Samuel Kerkham) RatcliffeLanguage: English
- Old KaskaskiaAuthor: Mary Hartwell CatherwoodLanguage: English
- Old Lady Mary: A Story of the Seen and the UnseenAuthor: Mrs. (Margaret) OliphantLanguage: English
- Old Lady Number 31Author: Louise ForsslundLanguage: English
- Old Love Stories RetoldAuthor: Richard Le GallienneLanguage: English
- Old Mackinaw; Or, The Fortress of the Lakes and its SurroundingsAuthor: W. P. (William Peter) StricklandLanguage: English
- Old Man Savarin, and Other StoriesAuthor: Edward William ThomsonLanguage: English
- Old Mission Stories of CaliforniaAuthor: Charles Franklin CarterLanguage: English
- Old Mortality, CompleteAuthor: Walter ScottLanguage: English
- Old Mortality, Volume 1.Author: Walter ScottLanguage: English
- Old Mortality, Volume 2.Author: Walter ScottLanguage: English
- Old Mother Hubbard and Her DogAuthor: UnknownLanguage: English
- Old Mother West WindAuthor: Thornton W. (Thornton Waldo) BurgessLanguage: English
- Old Mr. WileyAuthor: Greye La SpinaLanguage: English
- Old News: (From: "The Snow Image and Other Twice-Told Tales")Author: Nathaniel HawthorneLanguage: English
- Old Peter's Russian TalesAuthor: Arthur Ransome, Dmitrii Isidorovich MitrokhinLanguage: English
- Old Portraits and Modern Sketches: Part 1 from Volume VI of The Works of John Greenleaf WhittierAuthor: John Greenleaf WhittierLanguage: English
- Old Rail Fence Corners: The A. B. C's. of Minnesota HistoryAuthor: Lucy Leavenworth Wilder MorrisLanguage: English
- Old Rose and SilverAuthor: Myrtle ReedLanguage: English
- Old Saint Paul's: A Tale of the Plague and the FireAuthor: William Harrison AinsworthLanguage: English
- Old Scores and New Readings: Discussions on Music & Certain MusiciansAuthor: John F. RuncimanLanguage: English
- Old Spookses' Pass, Malcolm's Katie, and other poemsAuthor: Isabella Valancy CrawfordLanguage: English
- Old St. Paul's CathedralAuthor: William BenhamLanguage: English
- Old Testament legendsAuthor: M. R. (Montague Rhodes) JamesLanguage: English
- Old Ticonderoga, a Picture of the Past: (From: "The Snow Image and Other Twice-Told Tales")Author: Nathaniel HawthorneLanguage: English
- Old Times at OtterbourneAuthor: Charlotte M. (Charlotte Mary) YongeLanguage: English
- Old valentinesAuthor: Munson Aldrich Havens, Griswold TyngLanguage: English
- Old-Fashioned Fairy TalesAuthor: Juliana Horatia EwingLanguage: English
- Old-Time Makers of Medicine: The Story of The Students And Teachers of the Sciences Related to Medicine During the Middle AgesAuthor: James J. (James Joseph) WalshLanguage: English
- Oldport DaysAuthor: Thomas Wentworth HigginsonLanguage: English
- Oldtown Fireside StoriesAuthor: Harriet Beecher StoweLanguage: English
- Ole Mammy's TormentAuthor: Annie F. (Annie Fellows) Johnston, Mary G. Johnston, Amy M. (Amy Maria) SackerLanguage: English
- Olive: A NovelAuthor: Dinah Maria Mulock Craik, G. (Georgina) BowersLanguage: English
- Oliver Cromwell: A PlayAuthor: John DrinkwaterLanguage: English
- Oliver Goldsmith: A BiographyAuthor: Washington IrvingLanguage: English
- Oliver TwistAuthor: Charles DickensLanguage: English
- Oliver TwistAuthor: Charles DickensLanguage: French
- Oliver Wendell Holmes (from Literary Friends and Acquaintance)Author: William Dean HowellsLanguage: English
- Olivia in IndiaAuthor: O. DouglasLanguage: English
- Olivia oder Die unsichtbare LampeAuthor: Jakob WassermannLanguage: German
- Olla PodridaAuthor: Frederick MarryatLanguage: English
- Olviretki Schleusingenissä; Leo ja Liina; AlmaAuthor: Aleksis KiviLanguage: Finnish
- Olympian NightsAuthor: John Kendrick BangsLanguage: English
- Om en door den Peloponnesus: De Aarde en haar Volken, 1909Author: Jandin, B. deLanguage: Dutch
- Om utvandringen, dess betydelse och orsaker: Föredrag, hållet i Stockholm den 25 och den 28 November samt i Upsala den 3 December 1881Author: Knut WicksellLanguage: Swedish
- Om viljans frihet: Ett föredragAuthor: Frans von SchéeleLanguage: Swedish
- Omaha Dwellings, Furniture and Implements: Thirteenth Annual Report of the Beaurau of American Ethnology to the Secretary of the Smithsonian Institution 1891-1892, Government Printing Office, Washington, 1896, pages 263-288Author: James Owen DorseyLanguage: English
- Omatunto: SaaristokertomusAuthor: Juhani AhoLanguage: Finnish
- Omhoog in het luchtruim! Praatje over het luchtvaartvraagstuk: De Aarde en haar Volken, 1908Author: Frederike van UildriksLanguage: Dutch
- OmnilingualAuthor: H. Beam Piper, Kelly FreasLanguage: English
- Omoo: Adventures in the South SeasAuthor: Herman MelvilleLanguage: English
- Omzwervingen door de eilandenwereld van den Grooten Oceaan: De Fidji-eilanden: De Aarde en haar Volken, 1888Author: AnonymousLanguage: Dutch
- Omzwervingen door de eilandenwereld van den Grooten-oceaan: De Aarde en haar Volken, 1887Author: AnonymousLanguage: Dutch
- On a Dynamical Top, for exhibiting the phenomena of the motion of a system of invariable form about a fixed point, with some suggestions as to the Earth's motionAuthor: James Clerk MaxwellLanguage: English
- On a Torn-Away World; Or, the Captives of the Great EarthquakeAuthor: Rockwood, RoyLanguage: English
- On Being HumanAuthor: Woodrow WilsonLanguage: English
- On Board the Esmeralda: Martin Leigh's Log - A Sea StoryAuthor: Hutcheson, John C. (John Conroy), William Heysham OverendLanguage: English
- On Books and the Housing of ThemAuthor: W. E. (William Ewart) GladstoneLanguage: English
- On Christmas Day In The EveningAuthor: Grace S. (Grace Smith) Richmond, C. M. (Charles M.) RelyeaLanguage: English
- On Christmas Day in the MorningAuthor: Grace S. (Grace Smith) Richmond, C. M. (Charles M.) RelyeaLanguage: English
- On CommandoAuthor: Dietlof Van WarmeloLanguage: English
- On CompromiseAuthor: John MorleyLanguage: English
- On Conducting (Üeber Das Dirigiren) : A Treatise on Style in the Execution of Classical MusicAuthor: Richard Wagner, Edward DannreutherLanguage: English
- On English Homophones: Society for Pure English, Tract 02Author: Robert BridgesLanguage: English
- On Handling the DataAuthor: Mayfield, M. I., Kelly FreasLanguage: English
- On Heroes, Hero-Worship, and the Heroic in HistoryAuthor: Thomas CarlyleLanguage: English
- On HorsebackAuthor: Charles Dudley WarnerLanguage: English
- On HorsemanshipAuthor: Xenophon, Henry Graham DakynsLanguage: English
- On Laboratory ArtsAuthor: Threlfall, RichardLanguage: English
- On Land and Sea at the DardanellesAuthor: T. C. (Thomas Charles) BridgesLanguage: English
- On Limitations to the Use of Some Anthropologic DataAuthor: John Wesley PowellLanguage: English
- On Nothing & Kindred SubjectsAuthor: Hilaire BellocLanguage: English
- On Our SelectionAuthor: Steele RuddLanguage: English
- On Picket Duty, and Other TalesAuthor: Louisa May AlcottLanguage: English
- On prayer and the contemplative lifeAuthor: Thomas, Aquinas, Saint, Hugh PopeLanguage: English
- On RevenuesAuthor: Xenophon, Henry Graham DakynsLanguage: English
- On Some Fossil Remains of ManAuthor: Thomas Henry HuxleyLanguage: English
- On SomethingAuthor: Hilaire BellocLanguage: English
- On the Advisableness of Improving Natural KnowledgeAuthor: Thomas Henry HuxleyLanguage: English
- On the Antiquity of the Chemical ArtAuthor: Mactear, JamesLanguage: English
- On The Art of ReadingAuthor: Arthur Quiller-CouchLanguage: English
- On the Art of Writing: Lectures delivered in the University of Cambridge 1913-1914Author: Arthur Quiller-CouchLanguage: English
- On the Banks of the AmazonAuthor: William Henry Giles Kingston, William H. C. GroomeLanguage: English
- On The BlockadeAuthor: Oliver Optic, L. J. (Lewis Jesse) BridgmanLanguage: English
- On the Choice of BooksAuthor: Thomas Carlyle, Richard Herne ShepherdLanguage: English
- On the Church StepsAuthor: Sarah C. HallowellLanguage: English
- On the Decay of the Art of LyingAuthor: Mark TwainLanguage: English
- On the Duty of Civil DisobedienceAuthor: Henry David ThoreauLanguage: English
- On the Economy of Machinery and ManufacturesAuthor: Charles BabbageLanguage: English
- On the Edge of the Arctic; Or, An Aeroplane in SnowlandAuthor: H. L. (Harry Lincoln) Sayler, Hall, N. P. [Illustrator]Language: English
- On the Edge of the War Zone: From the Battle of the Marne to the Entrance of the Stars and StripesAuthor: Mildred AldrichLanguage: English
- On the eve: A novelAuthor: Ivan Sergeevich Turgenev, Constance GarnettLanguage: English
- On the Evolution of Language: First Annual Report of the Bureau of Ethnology to the Secretary of the Smithsonian Institution, 1879-80, Government Printing Office, Washington, 1881, pages 1-16Author: John Wesley PowellLanguage: English
- On the Firing LineAuthor: Anna Chapin Ray, Fuller, Hamilton BrockLanguage: English
- On the Firing Line in EducationAuthor: Ladd, Adoniram JudsonLanguage: English
- On the Fringe of the Great FightAuthor: George Gallie NasmithLanguage: English
- On the FrontierAuthor: Bret HarteLanguage: English
- On the Genesis of SpeciesAuthor: St. George Jackson MivartLanguage: English
- On the Heels of De WetAuthor: Lionel JamesLanguage: English
- On the Improvement of the UnderstandingAuthor: Benedictus de Spinoza, R. H. M. (Robert Harvey Monro) ElwesLanguage: English
- On the Indian Sect of the JainasAuthor: Georg Bühler, James BurgessLanguage: English
- On the Indian Trail: Stories of Missionary Work among Cree and Salteaux IndiansAuthor: Egerton Ryerson YoungLanguage: English
- On the Irrawaddy: A Story of the First Burmese WarAuthor: G. A. (George Alfred) Henty, William Heysham OverendLanguage: English
- On the King's Service: Inward Glimpses of Men at ArmsAuthor: Logan, InnesLanguage: English
- On the Method of Zadig: Essay #1 from "Science and Hebrew Tradition"Author: Thomas Henry HuxleyLanguage: English
- On the Nature of ThingsAuthor: Lucretius Carus, Titus, 95? BCE-50? BCE, William Ellery LeonardLanguage: English
- On the Old Road Vol. 1 (of 2): A Collection of Miscellaneous Essays and Articles on Art and LiteratureAuthor: John RuskinLanguage: English
- On the Old Road, Vol. 2 (of 2): A Collection of Miscellaneous Essays and Articles on Art and LiteratureAuthor: John RuskinLanguage: English
- On the Origin of Species by Means of Natural Selection: or the Preservation of Favoured Races in the Struggle for Life. (2nd edition)Author: Charles DarwinLanguage: English
- On the Origin of Species By Means of Natural Selection: Or, the Preservation of Favoured Races in the Struggle for LifeAuthor: Charles DarwinLanguage: English
- On the Pampas; Or, The Young SettlersAuthor: G. A. (George Alfred) HentyLanguage: English
- On the portraits of English authors on gardeningAuthor: Felton, SamuelLanguage: English
- On the Prospects of Christianity: Bernard Shaw's Preface to Androcles and the LionAuthor: Bernard ShawLanguage: English
- On the Reception of the 'Origin of Species'Author: Thomas Henry HuxleyLanguage: English
- On the Relations of Man to the Lower AnimalsAuthor: Thomas Henry HuxleyLanguage: English
- On the Ruin of BritainAuthor: Gildas, J. A. (John Allen) GilesLanguage: English
- On the Seashore: Cassell's "Eyes and No Eyes" Series, Book VIIAuthor: Smith, R. CadwalladerLanguage: English
- On the Significance of Science and ArtAuthor: Tolstoy, Leo, graf, Isabel Florence HapgoodLanguage: English
- On the Spanish Main; Or, Some English forays on the Isthmus of DarienAuthor: John MasefieldLanguage: English
- On the StairsAuthor: Henry Blake FullerLanguage: English
- On the Study of WordsAuthor: Richard Chenevix TrenchLanguage: English
- On the Study of ZoologyAuthor: Thomas Henry HuxleyLanguage: English
- On the SublimeAuthor: Longinus, active 1st century, Andrew Lang, Havell, H. L. (Herbert Lord), -Language: English
- On the TrackAuthor: Henry LawsonLanguage: English
- On the Trail of Grant and LeeAuthor: Frederick Trevor HillLanguage: English
- On the Trail of Pontiac; Or, The Pioneer Boys of the OhioAuthor: Edward StratemeyerLanguage: English
- On the Trail of the Space PiratesAuthor: Rockwell, Carey, Willy Ley, Glanzman, Louis [Illustrator]Language: English
- On the Trail: An Outdoor Book for GirlsAuthor: Lina Beard, Adelia B. (Adelia Belle) BeardLanguage: English
- On the Tree TopAuthor: Clara Doty Bates, Curtis, Jessie [Illustrator], Frank T. MerrillLanguage: English
- On the Vice of Novel Reading.: Being a brief in appeal, pointing out errors of the lower tribunal.Author: Young Ewing AllisonLanguage: English
- On WarAuthor: Carl von Clausewitz, Graham, J. J. (James John) [Translator]Language: English
- On With TorchyAuthor: Sewell Ford, Lincoln, F. Foster (Frederic Foster) [Illustrator]Language: English
- Once a weekAuthor: A. A. (Alan Alexander) MilneLanguage: English
- Once Aboard the Lugger-- The History of George and his MaryAuthor: A. S. M. (Arthur Stuart-Menteth) HutchinsonLanguage: English
- Once Upon A TimeAuthor: Richard Harding DavisLanguage: English
- Once Upon a Time in ConnecticutAuthor: Newton, Caroline Clifford, -Language: English
- Onder de wilde stammen op de grenzen van Afghanistan: De Aarde en haar Volken, 1917Author: T. L. (Theodore Leighton) PennellLanguage: Dutch
- Onder den rook der mijn: Eene novelle uit LimburgAuthor: Felix RuttenLanguage: Dutch
- Onder Moeders VleugelsAuthor: Louisa May Alcott, G. W. (Gerardina Wilhelmina) ElbertsLanguage: Dutch
- Onderweg in Tunis: De Aarde en haar Volken, 1909Author: Bellonie ChantreLanguage: Dutch
- One BasketAuthor: Edna FerberLanguage: English
- One Common FaithAuthor: Bahá'í International CommunityLanguage: English
- One Day: A sequel to 'Three Weeks'Author: Elinor GlynLanguage: English
- One Day At ArleAuthor: Frances Hodgson BurnettLanguage: English
- One Day More: A Play In One ActAuthor: Joseph ConradLanguage: English
- One Day's Courtship, and The Heralds of FameAuthor: Robert BarrLanguage: English
- One Hundred Best Books: With Commentary and an Essay on Books and ReadingAuthor: John Cowper PowysLanguage: English
- One Hundred Merrie And Delightsome Stories: Right Pleasaunte To Relate In All Goodly Companie By Way Of Joyance And JollityAuthor: Robert B. (Robert Bruce) Douglas, La Sale, Antoine de, Léon LebèqueLanguage: English
- One Man in His TimeAuthor: Ellen Anderson Gholson GlasgowLanguage: English
- One Man's Initiation—1917Author: John Dos PassosLanguage: English
- One of Life's SlavesAuthor: Jonas Lie, Muir, Jessie [Translator]Language: English
- One of Our Conquerors — CompleteAuthor: George MeredithLanguage: English
- One of Our Conquerors — Volume 1Author: George MeredithLanguage: English
- One of Our Conquerors — Volume 2Author: George MeredithLanguage: English
- One of Our Conquerors — Volume 3Author: George MeredithLanguage: English
- One of Our Conquerors — Volume 4Author: George MeredithLanguage: English
- One of Our Conquerors — Volume 5Author: George MeredithLanguage: English
- One of OursAuthor: Willa CatherLanguage: English
- One of the 28th: A Tale of WaterlooAuthor: G. A. (George Alfred) HentyLanguage: English
- One Third OffAuthor: Irvin S. (Irvin Shrewsbury) Cobb, Tony SargLanguage: English
- One Thousand and One Initial LettersAuthor: Owen JonesLanguage: English
- One Thousand Questions in California Agriculture AnsweredAuthor: Edward J. (Edward James) WicksonLanguage: English
- One Woman's LifeAuthor: Robert HerrickLanguage: English
- One Wonderful Night: A Romance of New YorkAuthor: Louis TracyLanguage: English
- One young manAuthor: J. E. (John Ernest) Hodder-WilliamsLanguage: English
- One-ShotAuthor: James Blish, H. R. Van DongenLanguage: English
- Only an IncidentAuthor: Grace Denio LitchfieldLanguage: English
- Only an Irish Boy; Or, Andy Burke's FortunesAuthor: Alger, Horatio, Jr.Language: English
- Onnen orjaAuthor: Eino LeinoLanguage: Finnish
- Ons Heerlijk Vaderland (deel 2 van 4): Boven en beneden den MoerdijkAuthor: Hendrik BlinkLanguage: Dutch
- Ons Vaderland van de vroegste tijden tot de 15de eeuwAuthor: M. Lievevrouw-CoopmanLanguage: Dutch
- Ontario Normal School Manuals: Science of EducationAuthor: Ontario. Department of EducationLanguage: English
- Ontario Teachers' Manuals: HistoryAuthor: Ontario. Department of EducationLanguage: English
- Ontario Teachers' Manuals: Household ManagementAuthor: Ontario. Department of EducationLanguage: English
- Ontario Teachers' Manuals: Household Science in Rural SchoolsAuthor: Ontario. Department of EducationLanguage: English
- Ontario Teachers' Manuals: LiteratureAuthor: Ontario. Department of EducationLanguage: English
- Ontario Teachers' Manuals: Nature StudyAuthor: Ontario. Department of EducationLanguage: English
- OntboezemingenAuthor: Carel van NieveltLanguage: Dutch
- Oom Gert Vertel en Ander GedigteAuthor: C. Louis (Christiaan Louis) LeipoldtLanguage: Afrikaans
- Oomphel in the SkyAuthor: H. Beam PiperLanguage: English
- Oonomoo the HuronAuthor: Edward Sylvester EllisLanguage: English
- OorlogsvisioenenAuthor: Cyriel BuysseLanguage: Dutch
- Oowikapun, or, How the Gospel reached the Nelson River IndiansAuthor: Egerton Ryerson YoungLanguage: English
- Op de Faröer: De Aarde en haar Volken, 1907Author: Seé, AnnaLanguage: Dutch
- Op de jacht in Mozambique: De Aarde en haar Volken, 1909Author: Vasse, GuillaumeLanguage: Dutch
- Op de olifantenjacht in Oeganda: De Aarde en haar Volken, 1910Author: Langsdorff, Baron deLanguage: Dutch
- Op den Tarn: De Aarde en haar Volken, 1909Author: Mendell, M.Language: Dutch
- Op Eigen WiekenAuthor: Louisa May Alcott, G. W. (Gerardina Wilhelmina) Elberts, Daan de (Daniël) VriesLanguage: Dutch
- Op reis en thuis: Novellen en schetsenAuthor: Justus van MaurikLanguage: Dutch
- Op SamoaAuthor: E. von (Eginhard) BarfusLanguage: Dutch
- Open Source Democracy: How online communication is changing offline politicsAuthor: Douglas RushkoffLanguage: English
- Opening a Chestnut BurrAuthor: Edward Payson RoeLanguage: English
- Openings in the Old TrailAuthor: Bret HarteLanguage: English
- Opera Stories from WagnerAuthor: Florence AkinLanguage: English
- Operation HaystackAuthor: Frank Herbert, H. R. Van DongenLanguage: English
- Operation R.S.V.P.Author: H. Beam PiperLanguage: English
- Operation TerrorAuthor: Murray LeinsterLanguage: English
- Operation: Outer SpaceAuthor: Murray LeinsterLanguage: English
- Opere, Volume Secondo : scritti critici e letterariAuthor: Giovanni Berchet, Egidio BelloriniLanguage: Italian
- Opinions socialesAuthor: Anatole FranceLanguage: French
- Oppikirja suomalaisen kirjallisuuden historiassaAuthor: B. F. (Bernhard Fredrik) GodenhjelmLanguage: Finnish
- Opportunities in AviationAuthor: Arthur Sweetser, Lamont, GordonLanguage: English
- Opportunities in EngineeringAuthor: Charles M. (Charles Marcus) HortonLanguage: English
- OptionsAuthor: O. HenryLanguage: English
- Opuscula Selecta Neerlandicorum: Nederlandsch Tijdschrift voor GeneeskundeAuthor: Hector Treub, Herman Boerhaave, F. C. (Franciscus Cornelis) Donders, Desiderius Erasmus, Gaubius, Hieronymus DavidLanguage: Latin
- OpusculesAuthor: Jean-B.-A. (Jean-Baptiste-Antoine) FerlandLanguage: French
- Opúsculos por Alexandre Herculano - Tomo 01Author: Alexandre HerculanoLanguage: Portuguese
- Opúsculos por Alexandre Herculano - Tomo 02Author: Alexandre HerculanoLanguage: Portuguese
- Opúsculos por Alexandre Herculano - Tomo 04Author: Alexandre HerculanoLanguage: Portuguese
- Opúsculos por Alexandre Herculano - Tomo 05Author: Alexandre HerculanoLanguage: Portuguese
- Opúsculos por Alexandre Herculano - Tomo 07Author: Alexandre HerculanoLanguage: Portuguese
- Opúsculos por Alexandre Herculano - Tomo 08Author: Alexandre HerculanoLanguage: Portuguese
- Opúsculos por Alexandre Herculano - Tomo 09Author: Alexandre HerculanoLanguage: Portuguese
- Orange and Green: A Tale of the Boyne and LimerickAuthor: G. A. (George Alfred) HentyLanguage: English
- Oration on the Life and Character of Henry Winter DavisAuthor: John A. J. (John Angel James) CreswellLanguage: English
- Oração funebre recitada nas exequias do Illm.^o e Exm.^o Sr. Pedro Alexandrino da CunhaAuthor: António Augusto Teixeira de VasconcelosLanguage: Portuguese
- Orchesography, or, the Art of Dancing: The Art of Dancing by Characters and Demonstrative FiguresAuthor: Feuillet, Raoul-Auger, John WeaverLanguage: English
- Ordnance Instructions for the United States Navy.: 1866. Fourth edition.Author: United States. Navy Department. Bureau of OrdnanceLanguage: English
- Oregon, Washington and Alaska; Sights and Scenes for the TouristAuthor: E. L. (Edward Lloyd) LomaxLanguage: English
- Organic Gardener's CompostingAuthor: Steve SolomonLanguage: English
- Organic Syntheses: An Annual Publication of Satisfactory Methods for the Preparation of Organic ChemicalsAuthor: James Bryant ConantLanguage: English
- Oriental Encounters: Palestine and Syria, 1894-6Author: Marmaduke William PickthallLanguage: English
- Oriental Religions and Christianity: A Course of Lectures Delivered on the Ely Foundation Before the: Students of Union Theological Seminary, New York, 1891Author: Frank F. (Frank Field) EllinwoodLanguage: English
- Origin and Development of Form and Ornament in Ceramic Art.: Fourth Annual Report of the Bureau of Ethnology to the Secretary of the Smithsonian Institution, 1882-1883, Government Printing Office, Washington, 1886, pages 437-466.Author: William Henry HolmesLanguage: English
- Origin of the Anglo-Boer War Revealed: The Conspiracy of the 19th Century Unmasked: (2nd ed.)Author: Thomas, C. H.Language: English
- Original letters and biographic epitomesAuthor: J. Atwood (John Atwood) SlaterLanguage: English
- Original Short Stories — Volume 01Author: Guy de Maupassant, Henderson, A. E. [Translator], McMaster, Albert Cohn [Translator], Quesada, Louise Charlotte GarstinLanguage: English
- Original Short Stories — Volume 02Author: Guy de Maupassant, Henderson, A. E. [Translator], McMaster, Albert Cohn [Translator], Quesada, Louise Charlotte GarstinLanguage: English
- Original Short Stories — Volume 03Author: Guy de Maupassant, Henderson, A. E. [Translator], McMaster, Albert Cohn [Translator], Quesada, Louise Charlotte GarstinLanguage: English
- Original Short Stories — Volume 04Author: Guy de Maupassant, Henderson, A. E. [Translator], McMaster, Albert Cohn [Translator], Quesada, Louise Charlotte GarstinLanguage: English
- Original Short Stories — Volume 05Author: Guy de Maupassant, Henderson, A. E. [Translator], McMaster, Albert Cohn [Translator], Quesada, Louise Charlotte GarstinLanguage: English
- Original Short Stories — Volume 06Author: Guy de Maupassant, Henderson, A. E. [Translator], McMaster, Albert Cohn [Translator], Quesada, Louise Charlotte GarstinLanguage: English
- Original Short Stories — Volume 07Author: Guy de Maupassant, Henderson, A. E. [Translator], McMaster, Albert Cohn [Translator], Quesada, Louise Charlotte GarstinLanguage: English
- Original Short Stories — Volume 08Author: Guy de Maupassant, Henderson, A. E. [Translator], McMaster, Albert Cohn [Translator], Quesada, Louise Charlotte GarstinLanguage: English
- Original Short Stories — Volume 09Author: Guy de Maupassant, Henderson, A. E. [Translator], McMaster, Albert Cohn [Translator], Quesada, Louise Charlotte GarstinLanguage: English
- Original Short Stories — Volume 10Author: Guy de Maupassant, Henderson, A. E. [Translator], McMaster, Albert Cohn [Translator], Quesada, Louise Charlotte GarstinLanguage: English
- Original Short Stories — Volume 11Author: Guy de Maupassant, Henderson, A. E. [Translator], McMaster, Albert Cohn [Translator], Quesada, Louise Charlotte GarstinLanguage: English
- Original Short Stories — Volume 12Author: Guy de Maupassant, Henderson, A. E. [Translator], McMaster, Albert Cohn [Translator], Quesada, Louise Charlotte GarstinLanguage: English
- Original Short Stories — Volume 13Author: Guy de Maupassant, Henderson, A. E. [Translator], McMaster, Albert Cohn [Translator], Quesada, Louise Charlotte GarstinLanguage: English
- Orjan oppiAuthor: Arvid JärnefeltLanguage: Finnish
- Orjien vapauttaminen Pohjois-AmerikassaAuthor: Gripenberg, Alexandra, friherrinnaLanguage: Finnish
- Orlando FuriosoAuthor: Lodovico Ariosto, William Stewart RoseLanguage: English
- Orlando FuriosoAuthor: Lodovico AriostoLanguage: Italian
- Orley FarmAuthor: Anthony TrollopeLanguage: English
- Orpheu Nº1: Revista Trimestral de LiteraturaAuthor: António Joaquim Tavares Ferro, José de Almada Negreiros, Alvaro de Campos, Ronald de Carvalho, Armando César Cortes-RodriguesLanguage: Portuguese
- Orpheu Nº2: Revista Trimestral de LiteraturaAuthor: António Joaquim Tavares Ferro, Alvaro de Campos, Violante Cisneiros, Eduardo Guimarães, Raul de Oliveira Sousa LealLanguage: Portuguese
- Orpheus in Mayfair, and Other Stories and SketchesAuthor: Maurice BaringLanguage: English
- Orrain: A RomanceAuthor: Levett Yeats, S. (Sidney)Language: English
- OrthodoxyAuthor: G. K. (Gilbert Keith) ChestertonLanguage: English
- OrthodoxyAuthor: G. K. (Gilbert Keith) ChestertonLanguage: English
- OrthographyAuthor: Elmer W. (Elmer Warren) Cavins, Edwin C. (Edwin Crawford) HewettLanguage: English
- Os Bravos do Mindello: Romance HistoricoAuthor: Faustino da FonsecaLanguage: Portuguese
- Os deputados brasileiros nas Côrtes Geraes de 1821Author: Manuel Emílio Gomes de CarvalhoLanguage: Portuguese
- Os fidalgos da Casa Mourisca: Chronica da aldeiaAuthor: Júlio DinisLanguage: Portuguese
- Os Filhos do Padre AnselmoAuthor: António José da Costa Couto Sá de AlbergariaLanguage: Portuguese
- Os LusíadasAuthor: Camões, Luís deLanguage: Portuguese
- Os meus amores: contos e balladasAuthor: Trindade CoelhoLanguage: Portuguese
- Os Pobres: Precedido de uma Carta-Prefacio de Guerra JunqueiroAuthor: Raul Brandão, Abílio Manuel Guerra JunqueiroLanguage: Portuguese
- Os Primeiros Amores de Bocage: Comedia em Cinco ActosAuthor: José da Silva Mendes LealLanguage: Portuguese
- Os SimplesAuthor: Abílio Manuel Guerra JunqueiroLanguage: Portuguese
- Os Sinos: Poesia NarrativaAuthor: Raul Sangreman ProençaLanguage: Portuguese
- Os sonetos completos de Anthero de QuentalAuthor: Antero de QuentalLanguage: Portuguese
- Osage TraditionsAuthor: James Owen DorseyLanguage: English
- Oscar the Detective; Or, Dudie Dunne, The Exquisite DetectiveAuthor: Old SleuthLanguage: English
- Oscar Wilde, His Life and Confessions — Volume 1Author: Frank HarrisLanguage: English
- Oscar Wilde, His Life and Confessions. Volume 1 (of 2)Author: Frank HarrisLanguage: English
- Oscar Wilde, His Life and Confessions. Volume 2 (of 2)Author: Frank HarrisLanguage: English
- Oscar; Or, The Boy Who Had His Own WayAuthor: Walter AimwellLanguage: English
- Oswald Langdon: or, Pierre and Paul Lanier. A Romance of 1894-1898Author: Hamilton, Levi JacksonLanguage: English
- OthelloAuthor: William ShakespeareLanguage: English
- OthelloAuthor: William ShakespeareLanguage: English
- OthelloAuthor: William ShakespeareLanguage: English
- OthelloAuthor: William ShakespeareLanguage: English
- OthelloAuthor: Wilhelm HauffLanguage: German
- OthelloAuthor: William Shakespeare, Christoph Martin WielandLanguage: German
- OthelloAuthor: William Shakespeare, Paavo Emil CajanderLanguage: Finnish
- OthelloAuthor: William Shakespeare, François GuizotLanguage: French
- Other Main-Travelled RoadsAuthor: Hamlin GarlandLanguage: English
- Other People's Business: The Romantic Career of the Practical Miss DaleAuthor: Harriet L. (Harriet Lummis) SmithLanguage: English
- Other People's MoneyAuthor: Emile GaboriauLanguage: English
- Other Tales and Sketches: (From: "The Doliver Romance and Other Pieces: Tales and Sketches")Author: Nathaniel HawthorneLanguage: English
- Other Things Being EqualAuthor: Emma WolfLanguage: English
- Other Worlds: Their Nature, Possibilities and Habitability in the Light of the Latest DiscoveriesAuthor: Garrett Putman ServissLanguage: English
- Otto of the Silver HandAuthor: Howard PyleLanguage: English
- Oude Egyptische LegendenAuthor: Margaret Alice MurrayLanguage: Dutch
- Oulua soutamassaAuthor: Teuvo PakkalaLanguage: Finnish
- Our American CousinAuthor: Tom TaylorLanguage: English
- Our Boys: Entertaining Stories by Popular AuthorsAuthor: VariousLanguage: English
- Our Casualty, and Other Stories: 1918Author: George A. BirminghamLanguage: English
- Our Catholic Heritage in English Literature of Pre-Conquest DaysAuthor: Emily Henrietta HickeyLanguage: English
- Our Changing ConstitutionAuthor: Charles W. (Charles Wheeler) PiersonLanguage: English
- Our Churches and Chapels: Their Parsons, Priests, & Congregations: Being a Critical and Historical Account of Every Place of Worship in PrestonAuthor: AtticusLanguage: English
- Our Common Insects: A Popular Account of the Insects of Our Fields, Forests, Gardens and HousesAuthor: A. S. (Alpheus Spring) PackardLanguage: English
- Our Day: In the Light of ProphecyAuthor: William Ambrose SpicerLanguage: English
- Our Deportment: Or the Manners, Conduct and Dress of the Most Refined SocietyAuthor: Young, John H.Language: English
- Our Elizabeth: A Humour NovelAuthor: Florence A. (Florence Antoinette) Kilpatrick, Ernest ForbesLanguage: English
- Our Farm of Four Acres and the Money We Made by ItAuthor: Coulton, Miss, Peter B. MeadLanguage: English
- Our Fathers Have Told Us: Part I. The Bible of AmiensAuthor: John RuskinLanguage: English
- Our Foreigners: A Chronicle of Americans in the MakingAuthor: Samuel Peter OrthLanguage: English
- Our Frank: and other storiesAuthor: Amy WaltonLanguage: English
- Our Friend John BurroughsAuthor: Clara BarrusLanguage: English
- Our Friend the CharlatanAuthor: George GissingLanguage: English
- Our Friend the DogAuthor: Maurice Maeterlinck, Cecil Aldin, Alexander Teixeira de MattosLanguage: English
- Our GiftAuthor: Teachers of the School Street Universalist Sunday School. BostonLanguage: English
- Our Government: Local, State, and National: Idaho EditionAuthor: James Alton James, Albert Hart Sanford, James Timbrell WorltonLanguage: English
- Our Holidays: Their Meaning and Spirit; retold from St. NicholasAuthor: VariousLanguage: English
- Our Hundred Days in EuropeAuthor: Oliver Wendell HolmesLanguage: English
- Our Lady Saint MaryAuthor: J. G. H. (Joseph Gayle Hurd) BarryLanguage: English
- Our Legal Heritage : 600-1776 King Aethelbert - King George IIIAuthor: Reilly, S. A.Language: English
- Our Legal Heritage, King AEthelbert, 596 to King George III, 1775Author: Reilly, S. A.Language: English
- Our Legal Heritage: The First Thousand Years: 600 - 1600: King Aethelbert - Queen ElizabethAuthor: Reilly, S. A.Language: English
- Our Little Korean CousinAuthor: H. Lee M. (Henry Lee Mitchell) PikeLanguage: English
- Our Little Lady: Six Hundred Years AgoAuthor: Emily Sarah Holt, Irwin, M. (Madelaine) [Illustrator]Language: English
- Our Master: Thoughts for Salvationists about Their LordAuthor: Bramwell BoothLanguage: English
- Our Mr. Wrenn: The Romantic Adventures of a Gentle ManAuthor: Sinclair LewisLanguage: English
- Our Mutual FriendAuthor: Charles DickensLanguage: English
- Our Navy in the WarAuthor: Lawrence PerryLanguage: English
- Our Nervous Friends — Illustrating the Mastery of NervousnessAuthor: Robert S. (Robert Sproul) CarrollLanguage: English
- Our New Neighbors At PonkapogAuthor: Thomas Bailey AldrichLanguage: English
- Our Nig; Or, Sketches from the Life of a Free Black, in a Two-story White House, North: Showing That Slavery's Shadows Fall Even ThereAuthor: Harriet E. WilsonLanguage: English
- Our Old Home: A Series of English SketchesAuthor: Nathaniel HawthorneLanguage: English
- Our PetsAuthor: AnonymousLanguage: English
- Our Pilots in the AirAuthor: William Perry BrownLanguage: English
- Our Pirate Hoard: 1891Author: Thomas A. (Thomas Allibone) JanvierLanguage: English
- Our Profession and Other PoemsAuthor: Jared BarhiteLanguage: English
- Our Sailors: Gallant Deeds of the British Navy during Victoria's ReignAuthor: William Henry Giles KingstonLanguage: English
- Our SaviourAuthor: AnonymousLanguage: English
- Our Soldier BoyAuthor: George Manville Fenn, Venner, Victor [Illustrator]Language: English
- Our Soldiers: Gallant Deeds of the British Army during Victoria's ReignAuthor: William Henry Giles KingstonLanguage: English
- Our Stage and Its Critics: By "E.F.S." of "The Westminster Gazette"Author: Edward Fordham SpenceLanguage: English
- Our Unitarian GospelAuthor: Minot J. (Minot Judson) SavageLanguage: English
- Our Vanishing Wild Life: Its Extermination and PreservationAuthor: William T. (William Temple) HornadayLanguage: English
- Our VillageAuthor: Mary Russell MitfordLanguage: English
- Our War with Spain for Cuba's FreedomAuthor: Trumbull WhiteLanguage: English
- Our World; Or, the Slaveholder's DaughterAuthor: F. Colburn (Francis Colburn) AdamsLanguage: English
- Out Around RigelAuthor: Robert H. WilsonLanguage: English
- Out in the Forty-Five: Duncan Keith's VowAuthor: Emily Sarah HoltLanguage: English
- Out Like a LightAuthor: Randall Garrett, Laurence M. Janifer, Kelly FreasLanguage: English
- Out of Doors—California and OregonAuthor: J. A. (Jackson Alpheus) GravesLanguage: English
- Out of the AshesAuthor: Ethel Watts Mumford GrantLanguage: English
- Out of the deepAuthor: Charles Kingsley, Frances Eliza Grenfell KingsleyLanguage: English
- Out of the Fog: A Story of the SeaAuthor: Charles K. (Charles Kellogg) OberLanguage: English
- Out of the PrimitiveAuthor: Robert Ames BennetLanguage: English
- Out of the Triangle: A Story of the Far EastAuthor: Mary E. (Mary Ellen) BamfordLanguage: English
- Out of Time's AbyssAuthor: Edgar Rice BurroughsLanguage: English
- Out To Win: The Story of America in FranceAuthor: Coningsby DawsonLanguage: English
- Out with Gun and Camera; or, The Boy Hunters in the MountainsAuthor: Edward StratemeyerLanguage: English
- Outdoor Sports and GamesAuthor: Claude Harris MillerLanguage: English
- Outline of the development of the internal commerce of the United States: 1789-1900Author: Thurman William Van MetreLanguage: English
- Outlines of a mechanical theory of stormsAuthor: Thomas BassnettLanguage: English
- Outlines of English and American Literature: An Introduction to the Chief Writers of England and America, to the Books They Wrote, and to the Times in Which They LivedAuthor: William J. (William Joseph) LongLanguage: English
- Outlines of Greek and Roman MedicineAuthor: Elliott, James, SirLanguage: English
- Outlines of Lessons in Botany, Part I; from Seed to Leaf: For the Use of Teachers, or Mothers Studying with Their ChildrenAuthor: Jane Newell MooreLanguage: English
- Outlines of the Earth's History: A Popular Study in PhysiographyAuthor: Nathaniel Southgate ShalerLanguage: English
- Outlines of Universal History, Designed as a Text-book and for Private ReadingAuthor: George Park FisherLanguage: English
- OutpostAuthor: Jane G. (Jane Goodwin) AustinLanguage: English
- Outspoken EssaysAuthor: William Ralph IngeLanguage: English
- Outward Bound Or, Young America Afloat: A Story of Travel and AdventureAuthor: Oliver OpticLanguage: English
- Outwitting our nervesAuthor: Josephine A. (Josephine Agnes) Jackson, Helen M. SalisburyLanguage: English
- Over HereAuthor: Edgar A. (Edgar Albert) GuestLanguage: English
- Over literatuur: Critisch en didactischAuthor: M. H. Van CampenLanguage: Dutch
- Over literatuur: Critisch en didactisch, tweede bundelAuthor: M. H. Van CampenLanguage: Dutch
- Over Paradise Ridge: A RomanceAuthor: Maria Thompson DaviessLanguage: English
- Over Prairie TrailsAuthor: Frederick Philip GroveLanguage: English
- Over Strand and Field: A Record of Travel through BrittanyAuthor: Gustave FlaubertLanguage: English
- Over the Border: Acadia, the Home of "Evangeline"Author: Chase, Eliza B. (Eliza Brown)Language: English
- Over the Fireside with Silent FriendsAuthor: Richard KingLanguage: English
- Over the PassAuthor: Frederick PalmerLanguage: English
- Over the Rocky Mountains to AlaskaAuthor: Charles Warren StoddardLanguage: English
- Over the Rocky Mountains: Wandering Will in the Land of the RedskinAuthor: R. M. (Robert Michael) BallantyneLanguage: English
- Over the Side: Captains All, Book 6.Author: W. W. (William Wymark) Jacobs, Will OwenLanguage: English
- Over the SliprailsAuthor: Henry LawsonLanguage: English
- Over the TeacupsAuthor: Oliver Wendell HolmesLanguage: English
- Over the Top With the Third Australian DivisionAuthor: G. P. (George Percival) Cuttriss, Monash, John, Sir, Neil McBeathLanguage: English
- Over There: War Scenes on the Western FrontAuthor: Arnold BennettLanguage: English
- OverbeckAuthor: J. Beavington AtkinsonLanguage: English
- Overdue: The Story of a Missing ShipAuthor: Harry Collingwood, W. Herbert (William Herbert) HollowayLanguage: English
- Overland Red: A Romance of the Moonstone Cañon TrailAuthor: Henry Herbert Knibbs, Anton Otto FischerLanguage: English
- Overland through Asia; Pictures of Siberian, Chinese, and Tartar LifeAuthor: Thomas Wallace KnoxLanguage: English
- Overland: A NovelAuthor: John William De ForestLanguage: English
- OverruledAuthor: Bernard ShawLanguage: English
- Owen Clancy's Happy Trail; Or, The Motor Wizard in CaliforniaAuthor: Burt L. StandishLanguage: English
- Owen Hartley; or, Ups and Downs: A Tale of Land and SeaAuthor: William Henry Giles KingstonLanguage: English
- Owindia : a true tale of the MacKenzie River Indians, North-West AmericaAuthor: Charlotte Selina BompasLanguage: English
- OxfordAuthor: Andrew LangLanguage: English
- OxfordAuthor: F. D. (Frederick Douglas) How, E. W. HaslehustLanguage: English
- Oxy-Acetylene Welding and Cutting: Electric, Forge and Thermit Welding together with related methods and materials used in metal working and the oxygen process for removal of carbonAuthor: Harold P. (Harold Phillips) ManlyLanguage: English
- Ozma of Oz: A Record of Her Adventures with Dorothy Gale of Kansas, the Yellow Hen, the Scarecrow, the Tin Woodman, Tiktok, the Cowardly Lion, and the Hungry Tiger; Besides Other Good People too Numerous to Mention Faithfully Recorded HereinAuthor: L. Frank (Lyman Frank) BaumLanguage: English
- Où va le monde?Author: Walther Rathenau, S. (Samuel) JankélévitchLanguage: French