| title | creator | language | description | tableOfContents | contributor | subject | created |
| Principles of Orchestration
With musical examples drawn from his own works | Rimsky-Korsakov, Nikolay, 1844-1908 | en | | | | | 2010-09-29 |
| A Practical Discourse on Some Principles of Hymn-Singing | Bridges, Robert, 1844-1930 | en | | | | Hymns; Church music -- Protestant churches | 2007-06-06 |
| Principles of Teaching | Bennion, Adam S., 1886-1958 | en | | | | | 2005-12-14 |
| The Principles of English Versification | Baum, Paull Franklin | en | | | | | 2007-05-07 |
| Principles of Mining
Valuation, Organization and Administration | Hoover, Herbert, 1874-1964 | en | | | | Mines and mineral resources; Mining engineering; Mineral industries -- Finance | 2008-09-24 |
| A Plea for the Criminal
Being a reply to Dr. Chapple's work: 'The Fertility of the
Unfit', and an Attempt to explain the leading principles
of Criminological and Reformatory Science | Kayll, James Leslie Allan, 1873-1944 | en | | | | Crime; Criminals; Reformatories; Chapple, William Allan, 1864-1936. The fertility of the unfit | 2009-04-29 |
| Physics and Politics, or, Thoughts on the application of the principles of "natural selection" and "inheritance" to political society | Bagehot, Walter, 1826-1877 | en | | | | Political science; Nationalism; Evolution | 2003-08-01 |
| The Child at Home
The Principles of Filial Duty, Familiarly Illustrated | Abbott, John S. C. (John Stevens Cabot), 1805-1877 | en | | | | | 2006-06-07 |
| Some Principles of Maritime Strategy | Corbett, Julian S. (Julian Stafford), 1854-1922 | en | | | | | 2005-02-16 |
| Voice Production in Singing and Speaking
Based on Scientific Principles (Fourth Edition, Revised and Enlarged) | Mills, Wesley, 1847-1915 | en | | | | | 2006-11-20 |
| The Sceptical Chymist
or Chymico-Physical Doubts & Paradoxes, Touching the Spagyrist's Principles Commonly call'd Hypostatical; As they are wont to be Propos'd and Defended by the Generality of Alchymists. Whereunto is præmis'd Part of another Discour | Boyle, Robert, 1627-1691 | en | | | | | 2007-10-08 |
| Principle and Practice
The Orphan Family | Martineau, Harriet, 1802-1876 | en | | | | Orphans -- Fiction; Brothers and sisters -- Fiction | 2007-10-20 |
| Manures and the principles of manuring | Aikman, Charles Morton | en | | | | Fertilizers; Manures | 2008-11-16 |
| An Essay on True and Apparent Beauty in which from Settled Principles is Rendered the Grounds for Choosing and Rejecting Epigrams | Nicole, Pierre, 1625-1695 | en | | | Cunningham, J. V. (James Vincent), 1911-1985 [Translator] | | 2009-05-22 |
| The Ancient Life History of the Earth
A Comprehensive Outline of the Principles and Leading Facts of
Palæontological Science | Nicholson, Henry Alleyne, 1844-1899 | en | | | | | 2004-12-06 |
| Socialism
A Summary and Interpretation of Socialist Principles | Spargo, John, 1876-1966 | en | | | | | 2007-09-23 |
| The Path-Way to Knowledg
Containing the First Principles of Geometrie | Record, Robert, 1510?-1558 | en | | | | | 2010-07-05 |
| The Elements of General Method
Based on the Principles of Herbart | McMurry, Charles Alexander, 1857-1929 | en | | | | | 2006-10-29 |
| Morality as a Religion
An exposition of some first principles | Sullivan, W. R. Washington (William Robert Washington) | en | | | | Conduct of life; Ethics; Religion and ethics | 2007-07-30 |
| An Essay on the Principle of Population | Malthus, T. R. (Thomas Robert), 1766-1834 | en | | | | | 2003-07-01 |
| Woman and Womanhood
A Search for Principles | Saleeby, C. W. (Caleb Williams), 1878-1940 | en | | | | | 2006-11-17 |
| Rembrandt and His Works
Comprising a Short Account of His Life; with a Critical Examination into His Principles and Practice of Design, Light, Shade, and Colour. Illustrated by Examples from the Etchings of Rembrandt. | Burnet, John, 1784-1868 | en | | | | Rembrandt Harmenszoon van Rijn, 1606-1669; Etching -- Catalogs | 2007-09-20 |
| An Enquiry Concerning the Principles of Taste, and of the Origin of our Ideas of Beauty, etc. | Reynolds, Frances, 1729-1807 | en | Augustan Reprint Society, publication number 27 | | Clifford, James L. [Commentator] | | 2004-09-17 |
| How to Teach Religion
Principles and Methods | Betts, George Herbert, 1868-1934 | en | | | | | 2005-05-08 |
| A Treatise Concerning the Principles of Human Knowledge | Berkeley, George, 1685-1753 | en | | | | Knowledge, Theory of; Idealism; Soul | 2003-12-01 |