Demonstrating, the Original Contract Entred Into by King and People, According to the Primary Institutions Thereof, in this Nation. Wherein is Proved, that the Placing on the Throne King William III. was the Natural Fruit and Effect of the Original Constitution. And that the Succession to this Crown, Establish'd in the Present Protestant Heirs, is de Jure, and Justify'd, by the Fundamental Laws of Great Britain. And Many Important Original Powers and Privileges, of Both Houses of Parliament, are Exhibited