John Foster is the author of Essays in a Series of Letters, The Established Church: Letters on the Voluntary Principle. By a Quiet Looker-on [John Foster]. Published in the Morning Chronicle of the 2nd and 3rd of October, 1834, The Life and Experience of John Foster, Minister of the Gospel, to the 48th Year of His Age: Written by Himself ... To which are Added Several Happy and Triumphant Deaths which Came Under His Notice, An Essay on the Evils of Popular Ignorance: and A Discourse on the Communication of Christianity to the Peole of Hindoostan, Speech of the Right Honorable John Foster ... delivered ... on Monday the 17th day of February, 1800.