[2] Mylne is the subject of a biography, Rational Piety and Social Reform in Glasgow (Wipf and Stock, 2015), by Dr Stephen Cowley.
Mylne's philosophy was a theistic empiricism and he regarded utility as the primary measure of morality.
He found a larger place for reason in mental life than his predecessors at Glasgow Francis Hutcheson and Thomas Reid, of the moral sense and common sense schools respectively.
Mylne also lectured on political economy at the University of Glasgow from a standpoint generally sympathetic to Adam Smith.
Some of his notes in manuscript are held by the Special Collections Department of the Library of the University of Glasgow.