An epitome of the history of Philosophy ... Translated from the French, with additions, and a continuation ... by C. S. H.

The Importance of Exalting the Intellectual Spirit of the Nation and Need of a Learned Class: A Discourse Pronounced Before the Phi Sigma Nu Society of the University of Vermont, August 3, 1836

Considerations on Some of the Elements and Conditions of Social Welfare and Human Progress

The Position and Duties of the Educated Men of the Country: A Discourse Pronounced Before the Euglossian and Alpha Phi Delta Societies of Geneva College, Aug. 5, 1840

About Men and Things

The True Idea of the University, and Its Relation to a Complete System of Public Instruction: An Address Before the Association of the Alumni of the University of the City of New York, June 28, 1852

Doctor Oldham at Greystones, and His Talk There

The True Idea of the University, and Its Relation to a Complete System of Public Instruction: An Address Before the Association of the Alumni of the University of the City of New York, June 28, 1852

The Endless Future of the Human Race: A Letter to a Friend

History and Its Philosophy: The Address at the Sixty-third Anniversary of the New-York Historical Society, December 19, 1867

About the Bishops'Declaration on Baptism; with something about Prayer-Book revision and Church progress. A letter to a layman

Considerations on Some of the Elements and Conditions of Social Welfare and Human Progress

The Endless Future of the Human Race: A Letter to a Friend

A Compendium of Christian Antiquities: Being a Brief View of the Orders, Rites, Laws and Customs of the Ancient Church in the Early Ages

Patriotism and the Slaveholders' Rebellion: An Oration

Satan as a Moral Philosopher: With Other Essays and Sketches

Dr. Oldham's Talk at Greystones

Principles and Prospects of the Friends of Peace: A Discourse Pronounced Before the Hartford County Peace Society, December 25, 1833

Considerations on Some of the Elements and Conditions of Social Welfare and Human Progress

Considerations on Some of the Elements and Conditions of Social Welfare and Human Progress: Being Academic and Occasional Discourses and Other Pieces