The Development of Metaphysics in Persia A Contribution to the History of Muslim Philosophy

Islam as an Ethical and Political Ideal

The Secrets of the Self

The art of war in the Middle Ages, A.D. 378–1515

The Book of Ballads Eleventh Edition, 1870

Travels in Peru and India While Superintending the Collection of Chinchona Plants and Seeds in South America, and Their Introduction into India

The Substance of Faith Allied with Science (6th Ed.) A Catechism for Parents and Teachers

The Lives of the III. Normans, Kings of England: William the First, William the Second, Henrie the First

The Secrets of the Self (Asrar-i Khudi) — A Philosophical Poem