An Essay in Aid of a Grammar of Assent

Trials and Triumphs of Faith

The Basis of Early Christian Theism

Through Nature to God

Know the Truth: A Critique on the Hamiltonian Theory of Limitation Including Some Strictures Upon the Theories of Rev. Henry L. Mansel and Mr. Herbert Spencer

Theism; being the Baird Lecture of 1876

Ma confession

God's Country: The Trail to Happiness

The New Optimism

Around the Wicket Gate or, a friendly talk with seekers concerning faith in the Lord Jesus Christ

The Lectures on Faith

Theism and Humanism Being the Gifford Lectures Delivered at the University of Glasgow, 1914