- Perceval's narrative: A patient's account of his psychosis, 1830-1832
- An Essay on the Means of Discharging the Public Debt; in Which the Reasons for Instituting a National Bank, and Disposing of the Forest-lands, are ... the Proposal for Establishing a National Bank
- A Narrative Of The Treatment Experienced By A Gentleman During A State Of Mental Derangement - Designed To Explain The Causes And The Nature Of Insanity ... Unfortunate Sufferers Under That Calamity
- Manuscripts of the Earl of Egmont. Diary of Viscount Percival Afterwards First Earl of Egmont ..; Volume 1
- The Journal of the Earl of Egmont: Abstract of the Trustees Proceedings for Establishing the Colony of Georgia, 1732-1738