An appeal to the consciences of the chief magistrates of this Commonvvealth, touching the Sabbath-day: : as held forth in a book intituled, Articles of religion approved and passed by both Houses of Parliament, after advice had with the Assembly of Divines, &c. Printed in the year 1648. As also in another book intituled, The grounds and principles of religion, contained in a short catechism, &c. And published by the same order.