| Author | Book Name | |
| Cable, George Washington, 1844-1925 | Bonaventure: A Prose Pastoral of Acadian Louisiana | PDF Book |
| Cable, George Washington, 1844-1925 | Gideon’s Band: A Tale of the Mississippi | PDF Book |
| Cajori, Florian, 1859-1930 | A History of Mathematics | PDF Book |
| Callan, Charles J. (Charles Jerome), 1877-1962 | The Shepherd Of My Soul | PDF Book |
| Calvin, Jean, 1509-1564 | Institutes of the Christian Religion (Vol. 1 of 2) | PDF Book |
| Calvin, Jean, 1509-1564 | Traité des reliques. EnglishA Treatise on Relics | PDF Book |
| Carmichael, R. D. (Robert Daniel), 1879-1967 | Diophantine Analysis | PDF Book |
| Carmichael, R. D. (Robert Daniel), 1879-1967 | The Theory of Numbers | PDF Book |
| Carus, Paul, 1852-1919 | The Foundations of Mathematics: A Contribution to the Philosophy of Geometry | PDF Book |
| Cassels, Walter Richard, 1826-1907 | The Gospel According to Peter: A Study | PDF Book |
| Cather, Willa, 1873-1947 | My Ántonia | PDF Book |
| Chadwick, G. A. (George Alexander), 1840-1923 | The Expositor’s Bible: The Gospel According to St. Mark | PDF Book |
| Chambers, Robert W. (Robert William), 1865-1933 | Barbarians | PDF Book |
| Chatzopoulos, Kostantinos, 1868-1920 | ΦθινόπωροAutumn | PDF Book |
| Christie, Agatha, 1890-1976 | The Murder on the Links | PDF Book |
| Church of Scotland. General Assembly | The Acts of the General Assemblies of the Church of Scotland | PDF Book |
| Church, Alfred John, 1829-1912 | The Hammer: A Story of the Maccabean Times | PDF Book |
| Cicero, Marcus Tullius, 106 BC-43 BC | The Academic Questions, Treatise De Finibus, and Tusculan Disputations, of M.T. Cicero, With a Sketch of the Greek Philosophers Mentioned by Cicero | PDF Book |
| Clark, George Washington, 1812- | The Liberty Minstrel | PDF Book |
| Clarke, James Freeman, 1810-1888 | Orthodoxy: Its Truths And Errors | PDF Book |
| Clausius, R. (Rudolf), 1822-1888 | Die Potentialfunction und das Potentiall; ein Beitrag zur mathematischen Physik | PDF Book |
| Clippinger, D. A. (David Alva), 1860-1938 | The Head Voice and Other Problems: Practical Talks on Singing | PDF Book |
| Clouston, J. Storer (Joseph Storer), 1870-1944 | The Lunatic at Large | PDF Book |
| Cobbold, George A. (George Augustus), 1857- | Religion in Japan | PDF Book |
| Coffey, P. (Peter), 1876-1943 | Ontology, or the Theory of Being | PDF Book |
| Coleridge, Samuel Taylor, 1772-1834 | Shakespeare, Ben Jonson, Beaumont and Fletcher | PDF Book |
| Coleridge, Samuel Taylor, 1772-1834 | Hints towards the formation of a more comprehensive theory of life. | PDF Book |
| Collingwood, W. G. (William Gershom), 1854-1932 | Ruskin Relics | PDF Book |
| Colum, Padraic, 1881-1972 | The Golden Fleece and The Heroes Who Lived Before Achilles | PDF Book |
| Cook, Theodore Andrea, 1867-1928 | The Story of Rouen | PDF Book |
| Coolidge, Julian Lowell, 1873-1954 | The Elements of non-Euclidean Geometry | PDF Book |
| Cooper, Michael D. | The Runaway Asteroid | PDF Book |
| Couturat, Louis, 1868-1914 | Algèbre de la logique. EnglishThe Algebra of Logic | PDF Book |
| Crane, Walter, 1845-1915 | The Baby’s Bouquet: A Fresh Bunch of Rhymes and Tunes | PDF Book |
| Crane, Walter, 1845-1915 | The Baby’s Opera | PDF Book |
| Crowest, Frederick James, 1850-1927 | Advice to Singers | PDF Book |
| Cruickshank, Alfred Hamilton, 1862-1927 | Philip Massinger | PDF Book |
| Curmer, L. (Henri Léon), 1801-1870 | Les français peints par eux-mêmes, tome 1 | PDF Book |
| Curtis, Edward S., 1868-1952 | The North American Indian, Vol. 1 | PDF Book |