• Observations on the Disturbances in the Madras Army in 1809
• Sketch of the Sikhs: A Singular Nation Who Inhabit the Provinces of Penjab, Situated Between the Rivers Jumna and Indus
• Sketches of Persia
• The Life of Robert, Lord Clive, Vol. 1 (of 3): Collected from the Family Papers Communicated by the Earl of Powis
• The Life of Robert, Lord Clive, Vol. 2 (of 3): Collected from the Family Papers Communicated by the Earl of Powis
• The Life of Robert, Lord Clive, Vol. 3 (of 3): Collected from the Family Papers Communicated by the Earl of Powis