An Example of plain catechising upon the assembly's shorter catechism : Humbly offer'd as an help for instructing the young and ignorant in the knowledge of the principles and duties of the Christian religion, with the grounds thereof, and that in a very comprehensive manner. With a preface, briefly demonstrating the truth of the Christian revelation, and the unreasonableness of infidelity. By the Reverend Mr. John Willison, minister of the gospel in Dundee.