Purves published: •
A Short Abstract of the Principles … of the United Societies in Scotland. … By the said Societies, &c., no place or printer 1771. •
An Inquiry into the Institution and End of Civil Government, &c., no place or printer, 1775, •
Observations on Prophetic Time and Similitudes, &c., Edinburgh, pt. i. 1777; pt. ii. no place, 1778. •
Observations on the Conduct of … the Reformed Presbytery, &c., Edinburgh, 1778; this includes
A Short Letter to Mr. Fairly (24 April 1772),
An Extract from a Letter to Mr. Thorburn (July 1777), and ''A Copy of the Letter sent to Mr. John M'Millan'' (24 October 1777, by Alexander Forton). •
The Original Text and a Translation of the Forty-sixth Psalm, with Annotations, &c., Edinburgh, 1779. •
A Hebrew Grammar without Points, &c., Edinburgh, 1779. •
An Essay toward a … Translation of some parts of the Hebrew Scriptures, &c., Edinburgh, 1780, (anon.; three numbers issued). •
An Humble Attempt to investigate … the Scripture Doctrine concerning the Father, the Son, and the Holy Spirit, &c., 2nd edit. Edinburgh and London, 1784. •
Eight Letters between the Buchanites and a Teacher near Edinburgh, &c., Edinburgh, 1785. •
A Scheme of the Lives of the Patriarchs, 1785. •
Concise Catechism with Scripture Answers, &c., Edinburgh, 1787, (anon.). •
An Humble Enquiry into Faith and Regeneration, &c., Edinburgh, 1788. •
A Dissertation on the Seals, the Trumpets, and the Vials … in the Book of Revelation, &c., Edinburgh, 1788. •
A Letter to Mr. John Dick, &c., Berwick, 1788 (anon.; criticises a sermon by
John Dick, on the case of
William M'Gill). •
Observations on the Visions of the Apostle John, &c., Edinburgh, vol. i. 1789, (maps); vol. ii. 1793, (plans). •
Some Observations on Socinian Arguments, &c., Edinburgh, 1790. •
A Treatise on Civil Government, &c., Edinburgh, 1791 (in sympathy with the French revolution; the writer's name is given on the title-page as "Sevrup Semaj"). •
A Declaration of the Religious Opinions of the Universalist Dissenters, Edinburgh, 1792. •
A Short Representation of Religious Principles, &c. [1793?]. Posthumous were: •
A Review of the Age of Reason, &c., Edinburgh, 1795, pt. i. (the second part was never written). •
An Enquiry concerning … Sacrifices … added, A Letter to T. F. Palmer, B.D., on the State of the Dead, &c., Edinburgh, 1797. ==Views==