WEISS (Major). PHILOSOPHICAL, POLITICAL AND MORAL PRINCIPLES. Geneva, Barde, 1789. 3 volumes in-12, marbled blond basane, smooth spine decorated (contemporary binding). Portrait-frontispiece. François-Rodolphe Weiss (1751-1818) was a fervent supporter of the French Revolution and became Swiss ambassador to France in 1792. His book is devoted to luxury and liberty. Minor defects to binding.