National calamity the consequence of national guilt : And a general reformation of manners the only effectual remedy: a sermon preached at Sanquhar, December 3d, 1778, being a fast-day appointed by the Synod of Dumfries. Wherein the danger to which our civil and religious interests are just now exposed by the public encouragement given to popery, and by the melancholy decline of religion and morals through the kingdom, is particularly considered. By John Thomson, minister of the Gospel at Sanquhar.