| title | creator | language | description | tableOfContents | contributor | subject | created |
| War-Time Financial Problems | Withers, Hartley, 1867-1950 | en | | | | World War, 1914-1918 -- Economic aspects -- Great Britain; Finance -- Great Britain; Currency question -- Great Britain | 2004-07-29 |
| Modern Economic Problems
Economics Volume II | Fetter, Frank Albert, 1863-1949 | en | | | | | 2004-04-01 |
| Polly Oliver's Problem | Wiggin, Kate Douglas Smith, 1856-1923 | en | | | | | 2005-04-15 |
| The Children: Some Educational Problems | Darroch, Alexander | en | | | | | 2007-05-11 |
| The Lutherans of New York
Their Story and Their Problems | Wenner, George | en | | | | | 2005-01-08 |
| Grace Harlowe's Problem | Flower, Jessie Graham [pseud.], -1931 | en | | | | | 2007-01-11 |
| The Problems of Philosophy | Russell, Bertrand, 1872-1970 | en | | | | Philosophy -- Introductions; Metaphysics; Knowledge, Theory of | 2004-06-01 |
| A Problem in Greek Ethics
Being an inquiry into the phenomenon of sexual inversion | Symonds, John Addington, 1840-1893 | en | | | | | 2010-04-17 |
| Sequential Problem Solving
A Student Handbook with Checklists for Successful Critical Thinking | Lozo, Fredric | en | | | | | 2005-08-19 |
| Commentary Upon the Maya-Tzental Perez Codex
with a Concluding Note Upon the Linguistic Problem of the Maya Glyphs | Gates, William, 1863-1940 | en | | | | Maya language -- Texts; Mayas -- History; Codex Peresianus | 2008-06-22 |
| The League of Nations and its Problems
Three Lectures | Oppenheim, L. (Lassa), 1858-1919 | en | | | | | 2008-07-10 |
| Yeast: a Problem | Kingsley, Charles, 1819-1875 | en | | | | | 2003-12-01 |
| Problems of Immanence: studies critical and constructive | Warschauer, Joseph, 1869- | en | | | | | 2007-05-16 |
| The Works of Aristotle the Famous Philosopher
Containing his Complete Masterpiece and Family Physician; his Experienced Midwife, his Book of Problems and his Remarks on Physiognomy | Aristotle, 384 BC-322 BC | en | | | | | 2004-06-01 |
| Liberalism and the Social Problem | Churchill, Winston, 1874-1965 | en | | | | | 2006-05-18 |
| Report of the Committee of Inquiry into the Various Aspects of the Problem of Abortion in New Zealand | | en | | | | | 2008-10-27 |
| PRoblem | Nourse, Alan Edward, 1928-1992 | en | | | | Science fiction; Short stories; Human-alien encounters -- Fiction | 2008-01-15 |
| German Problems and Personalities | Saroléa, Charles, 1870-1953 | en | | | | | 2010-02-03 |
| Problem on Balak | Aycock, Roger D., 1914-2004 | en | | | | | 2010-10-04 |
| The Golden Slipper : and other problems for Violet Strange | Green, Anna Katharine, 1846-1935 | en | | The golden slipper -- The second bullet -- The intangible clew -- The grotto spectre -- The dreaming lady -- The house of clocks -- The doctor, his wife, and the clock -- Missing: page thirteen -- Violet's own. | | | 2002-02-01 |
| Probleme der Mystik und ihrer Symbolik. English | Silberer, Herbert, 1882-1922 | en | | | Jelliffe, Smith Ely, 1866-1945 [Translator] | Society of Rosicrucians; Symbolism (Psychology); Alchemy | 2009-01-09 |
| The Negro Problem | | en | | | | | 2005-02-14 |
| Initiative Psychic Energy
Being the Sixth of a Series of Twelve Volumes on the
Applications of Psychology to the Problems of Personal and
Business Efficiency | Hilton, Warren, 1874- | en | | | | Psychology, Applied; Psychic energy (Psychoanalysis) | 2005-12-17 |
| The Trained Memory
Being the Fourth of a Series of Twelve Volumes on the
Applications of Psychology to the Problems of Personal and
Business Efficiency | Hilton, Warren, 1874- | en | | | | Psychology, Applied; Memory | 2006-02-22 |
| The Problem of China | Russell, Bertrand, 1872-1970 | en | | | | | 2004-11-03 |