| title | creator | language | description | tableOfContents | contributor | subject | created |
| The Irrational Knot
Being the Second Novel of His Nonage | Shaw, Bernard, 1856-1950 | en | | | | | 2004-02-01 |
| The Second Story of Meno; a continuation of Socrates' dialogue with Meno in which the boy proves root 2 is irrational | Unknown | en | | | | | 2008-07-09 |
| History of Rationalism Embracing a Survey of the Present State of Protestant Theology | Hurst, J. F. (John Fletcher), 1834-1903 | en | | | | Rationalism -- History; Protestantism | 2006-09-28 |
| Rationalism | Robertson, J. M. (John Mackinnon), 1856-1933 | en | | | | | 2010-04-11 |
| The Digger Movement in the Days of the Commonwealth
As Revealed in the Writings of Gerrard Winstanley, the Digger, Mystic and Rationalist, Communist and Social Reformer | Berens, Lewis Henry | en | | | | | 2006-01-08 |
| The Spirit and the Word
A Treatise on the Holy Spirit in the Light of a Rational
Interpretation of the Word of Truth | Sweeney, Zachary Taylor | en | | | | | 2005-02-10 |
| The Psychology of Singing
A Rational Method of Voice Culture Based on a Scientific Analysis of All Systems, Ancient and Modern | Taylor, David C. (David Clark), 1871-1918 | en | | | | Singing; Voice culture | 2007-06-28 |
| Rational Horse-Shoeing | Russell, John E. (John Edwards), 1834-1903 | en | | | | | 2007-09-14 |